1) Rababerry (10m)
Bought:
Seeds: 10k
Pot: 10k
Ticket: 2k
Fertilizer: 3.4m

Savings: 6.6m

2) Pee (Unbuyable, U
Bought:
Seeds: 10k
Pot: Same pot, no cost
Ticket: 2k
Fertilizer: 3.5m*
(Bought bootleg instead of regular, costly mistake)