Ideas for pouches?

im developing a mod where there are different pouches which has different functions, right now I have only 1 pouch, it copies the item in your off hand to their max stack size. its OP but its for people who dont like resource gathering and just like building. The pouches you guys suggest may be made into a separate mod. And you will be credited if you want, so include that in your suggestion too, thanks!

​

also related, I am not an artist, so if someone wants to contribute to my mod then you're free to do so. Keep in mind that I wont pay money for the art you provide, I know artists put a lot of work into their art but I dont have the money, so yeah..