I just wanted to share these ideas I came up with.

If you like them please tell me,or if you think they're not so great,lol,you can tell me that too! Well,there are my ideas for homemade toys/beds,etc.
Socks! Have any old,mismatched socks that you need to get rid of? No problem! I have some that I hung up in the cage,with some string,and my mice love crawling inside of,and/or sleeping on top of. You can also cut the toe part off,to make it a hanging tunnel.
As most of you know,toilet paper and paper towel tubes make great tunnels. I poked a hole on each side,and hung one up with yarn. You could even attach them ,with yarn. Just tie them together,and voila~,you have a mountain of tunnels. Or,you could cut a hole in the side of one,and poke another one through the hole,and there you have it,a maze of tunnels!
I've even made small things like ladders,out of clean popsicle sticks. I also made a 'bridge' out of the sticks,by tying them up with more string (I have lots of string,Heh heh.),on each end,and used it to connect two houses.
Houses: I sometimes use cardboard Oatmeal boxes and such,as houses,by taking off the lid,turning it upside down,and cutting an oval-shaped hole in one side. It makes a good house to sleep in. ^.^ You could even add 'curtains',by getting a scrap of cloth,and sewing it over the door-hole. Hope I helped a bit!
A toy idea (Made with more string yes,lol.) is,just take a long piece of string,knot it at the end,and slip on some large beads,bells,or even dried foods! Just make sure the beads aren't small enough for them to swallow.
~Serenah