Just collected some things to think about from chat:

Think about why i let you use either green or purple beetles for sacrifices.

a purple beetle IS more rare than a green beetle, after all. but they're of the same genus. interdasting.

Each recipe has a certain percentage chance of success, which can be enhanced by using certain items in various tiers. Users will be informed whether their recipe is unsuccessful or simply invalid. Ingredients will be returned to inventory upon failing a valid recipe