We love photo mobiles because you can hang anything you want and easily swap out new images. We were reminded to think outside the (photo) box when we saw these cards from a vintage Price Is Right boardgame hanging from Ella McDoniel's mobile.
Ella picked these up in a thrift shop, but maybe you have old games gathering dust in a closet or you can raid your parents' stash. Hanging photo mobile kits are easy to find and usually cost around $15. A few online options are here and here.
Are you using anything unique in your photo mobile? Let us know in the comments.