What are some great food and toy ideas for mice. (easy and cheap to make)?

i have 47 mice i don't know what to do with, so i tohught untill the pet stores will accept them i'l have some fun with them with some interesting toys.





i would also like to know just some tips on how to train themWhat are some great food and toy ideas for mice. (easy and cheap to make)?
all i can thing of is


Toilet paper tubes


Paper towel tubes





EDIT: what i did before was make like a maze using anything/everything around the house


OR


Cut holes in the tubes and make a maze that way??What are some great food and toy ideas for mice. (easy and cheap to make)?
toilet roll tubes.


kitchen roll tubes