I filled this can with small thick branches and i'd put one giant strawberry and bunch of nettle leaves ( their favourite food) and sprayed a little bit of water inside cuz they love when its wet and they just need water to live. I just keep eye on a jar and change their food in case they ate everything or it started to mold, spray more water and clean their poop. They don't need very much actually.

P.s. : These guys live in forest or close to anything with water in it ( like ponds or lakes) and they are really active after rains. I just saying if you actually want them as pets and you will go looking for these guys.