10 grain = 1 guano if he feels like it
^- 50=2 Guano
^--100= 3 Guano
1 Expensive Grilled Cheese = 3 Guano
5 Meats = 2 Guano
5 Hard Bubbles = 2 Guano
10 Corn = 2 Guano
1 Hot 'n' Fizzy Sauce = 1 Guano (He totally deserved it.)
2 Purple Flowers = 1 Guano
Know of anymore? We are still experimenting, so we will update.