What if, for example, several more pets had abilities
Broodling
Spoiler
Upon eating spicy chili, will start digging for a day, finding gold, gems and some trinkets.
Vargling
Spoiler
Being a basic pet, retrieves basic items for you. For Monster lasagna.
Kittykit
Spoiler
Will cough up trinkets, feathers, morsels, fish, and a few other, harder to get things. For fishsticks in exchange.
Ewecus
Spoiler
Will sneeze, dropping agro of mobs and occasionally droping either steel wool or phlem. It will only do so with some guacamole.
That's it for now, I don't think these ideas or more will reach into the mind of klei, but who knows?