Was curious to know what kinds of toys and exercise "equipment" people have made for their feeders.

I've been considering making run wheels using 1/4" hardware cloth and "craft rings" from crafting stores.

Also, was curious about chew alternatives. I don't feel like spending $5 on a pack of 4 sticks from a pet store...anyone found any pet store chew alternatives or maybe a fun way for your feeders to enjoy their chew time?

Thanks in advance!
-Fade