Missing Gourmets with Origins.

9th Birthday Luxury Cake (retired)- Marapets 9th Birthday Account Upgrade - released August 14, 2013 and retired August 27, 2013
9th Birthday Pearl (retired) - Marapets 9th Birthday Account Upgrade - released August 14, 2013 and retired August 27, 2013
American Gumball - comes from the Gumball Machine in Candyland
American Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Angel Gumball - comes from the Gumball Machine in Candyland
Angel Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Angelwing Butterfly - random prize when using a trap in the Crevice in City Sewers
Anime Gumball - comes from the Gumball Machine in Candyland
Apple Bug Lolly - restocks in the Halloween Treats shop
Armoured Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Australian Gumball - comes from the Gumball Machine in Candyland
Australian Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Autumn Gumball - comes from the Gumball Machine in Candyland
Baby Pearl - restocks in the Pearl Shop
Balloon Gumball - comes from the Gumball Machine in Candyland
Balloon Pearl - restocks in the Pearl Shop
Balloon Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Bankrupt Pearl (retired) - 2011 City of Marada Recession Event (sold for 2,000 stimulus points at the city stimulus shop)
Baspinars Castle Pearl - Baspinar Castle goals level 14 prize
Bat Cupcake (retired) - Halloween Limited Edition Account Upgrade released 10/24/2012 and retired November 5, 2012
Battle Gumball (retired) - Limited Edition Account Upgrade, January 2012
Bee Pearl (retired) - bought from a limited edition Account Upgrades on sale April 7, 2012 until April 25th
Bite Sized Cheese Pizza - restocks in the Pizza Shop
Bite Sized Hawaiian Pizza - restocks in the Pizza Shop
Bite Sized Pepperoni Pizza - restocks in the Pizza Shop
Black Blood - on sale in the Accounts Upgrade Shop for 3 AU
Black Bunns - Easter Capsule Machine Item - Released April 20, 2014
Black DNA - on sale at the Recycling Center for 350 cans
Black Gumball - random prize from the Gumball Machine in Candyland
Black Potato - randomly received when winning the Guess the Weight game in Gigantic Paradise
Black Yolk - Easter Account Upgrade, released April 20, 2014
Blitzen Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Bloody Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Blue Blood - can be purchased for 3 AU in Accounts Upgrade Shop
Blue Bunns - Easter Capsule Machine Item - Released April 20, 2014
Blue DNA - on sale in the Accounts Upgrade Shop for 4 AU
Blue Eyeball Gummies - restocks in the Halloween shop
Blue Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Blue Yolk - Easter Account Upgrade, released April 20, 2014
Blueberry Bug Lolly - restocks in the Halloween Treats shop
Bone Potato (Retired) - Limited Edition Account Upgrade of October 2007
Breeze Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
British Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Bronze Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Brown Bunns - Easter Capsule Machine Item - Released April 20, 2014
Brown DNA - can be purchased in the Millionaires Lodge for 5 million mps
Brown Eyeball Gummies - restocks in the Halloween shop
Brown Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Brown Rice Onigiri - restocks in the Sushi shop
Brown Yolk - Easter Account Upgrade, released April 20, 2014
Bug Candy - item was from the Dukka Piracy Event of 2010 (retired)
Burnt Pearl - restocks in the Pearl Shop
Burnt Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Buttered Potato - random Guess the Weight game prize
Calico Gumball - can be bought at the Pirate Ship for 250 Dukka Coin
Calico Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Camouflage Gumball - comes from the Gumball Machine in Candyland
Camouflage Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Can of Ambrosia - Libra Treasure Chest Item (retired)
Caramel Bug Lolly - restocks in the Halloween shop
Caramel Corn Dung - restocks in the Halloween Treats shop
Caramel Dung - restocks in the Halloween Treats shop
Checkered Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Cheese Fries - restocks in the Fast Food shop
Cheese Pearl - restocks in the Pearl shop
Cheese Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Cherry Bug Lolly - restocks in the Halloween Treats shop
Cherry Ice Cream Vixen Lolly - restocks in the Ice Cream shop
Chili Cheese Fries - restocks in the Fast Food shop
Chocolate Beach Cake (retired) - random prize received from referring a member during the summer referral contest
Chocolate Pearl (retired) - Limited Edition February 2009 Account Upgrade
Chocolate Potato - randomly received when winning Guess the Weight game in Gigantic Paradise
Christmas Tree Pearl (retired) - Christmas tree themed December 2009 Account Upgrade
Christmas Tree Potato (retired) - Christmas Tree December 2009 gold account upgrade
Churro - restocks in the Fast Food shop
Corn Dung - restocks in the Halloween Treats shop
Cotton Candy Gumball - random prize from the Gumball Machine in Candyland
Cotton Candy Potato - randomly received when winning the Guess the Weight game in Gigantic Paradise
Cupid Potato - randomly received when winning the Guess the Weight game in Gigantic Paradise
Cursed Gumball - comes from the Gumball Machine in Candyland
Dark Chocolate Decadal - restocks in the Chocolate shop
Dark Side Pearl (retired) - obtained from the War Redemption Shop on Minipet Island during the first Marada War that started on March 11, 2007
Digital Potato - Digital Fairy prize given for having 625 Avatars
Dirt Muffin (retired) - item was sold for 200 stimulus points at the Stimulus Shop during the City of Marada recession
DNA Pearl - random prize when playing the Enpiah Slot Machine
Double Chocolate Ice Cream Vixen Lolly - restocks in the Ice Cream shop
Dung - restocks in the Halloween Treats shop
Ear Cookie - restocks in the Halloween Treats shop
Earth Fairy Pearl (retired) - Earth Fairy August 2008 Account Upgrade
Easter Cupcake - Easter Account Upgrade, released April 20, 2014
Easter Egg Shaped Pearl - Easter Capsule Machine Items - Released April 20, 2014
Easter Potato - random Guess the Weight game prize
Egg Potato - random Guess the Weight game prize
Elephant Moth - random bug caught using a trap in the Crevice in City Sewers
Elf Ear Cookie - restocks in the Halloween Treats shop
Empty Plate - purchased at the War Redemption Shop during the City of Marada Recession Event of 2011
Endangered Fish (smuggler) - bought from the Smuggler for 50 Dukka Coin
Ercuw Blood - restocks in the Cooking Ingredients shop
Explorer Pearl (retired) - Explorer July 2008 Account Upgrade
Fire Potato - randomly received when winning the Guess the Weight game in Gigantic Paradise
Firework Potato (retired) - Firework Gold Account Upgrade released January 28, 2011
Floral Pearl - restocks in the Pearl shop
Flounder Sashimi - restocks in the Sushi shop
Frankenstein Cupcake - prize given for completing the Undying Woods Stamp page in your stamp album
Frankenstein Pearl - received when the Undying Woods page of your Stamp Album is completed
Frankenstein Potato - received when the Undying Woods page of your Stamp Album is completede
Frozen Bone - restocks in the Frozen Food shop
Frozen Frog Legs - restocks in the Frozen Food shop
Frozen Lolly - restocks in the Frozen Food shop
Frozen Shrimp - restocks in the Frozen Food shop
Fruit Potato - random Guess the Weight game prize
Funazushi - restocks in the Sushi shop
Giant Pearl - restocks in the Pearl shop
Giant Poinsettia (retired) - 2005 Advent Calendar gift
Giant Salad Bowl - Taurus Treasure Chest Items - retired May 21, 2013
Gingerbread Gumball - comes from the Gumball Machine in Candyland
Gingerbread Pearl (retired) - Gingerbread December 2008 Account Upgrade
Gingerbread Potato - randomly received when winning the Guess the Weight game in Gigantic Paradise
Grape Bug Lolly - restocks in the Halloween Treats shop
Green Bunns (gourmet minipet) - Capsule Machine prize released April 2014
Green DNA - can be purchased for 4 Account Credits in the Account Upgrades shop
Green Eyeball Gummies - restocks in the Halloween Treats shop
Green Heart Macaroon - can be purchased from Slater Stalker for 1,200 Stalker Points
Green Potato - randomly received when winning the Guess the Weight game in Gigantic Paradise
Green Yolk (gourmet minipet) (retired) - part of the Easter Account Upgrade, released April 20, 2014
Grey Blood - can be purchased for 3 Account Credits in the Account Upgrades shop
Grey Bunns (gourmet minipet) - Capsule Machine prize released April 2014
Grey DNA - can be purchased for 4 Account Credits in the Account Upgrades shop
Grey Potato - randomly received when winning the Guess the Weight game in Gigantic Paradise
Grey Yolk (gourmet Minipet)(retired) - part of the Easter Account Upgrade, released April 20, 2014
Gummy Scorpion (retired) - random Scorpion Treasure Chest item

Meh that's as far as I'm going right now.