Here is a small, vintage, metal caster for you to use in your industrial decor or to repurpose as a photo paperweight as seen at Eclectically Vintage.
It is 2-1/4″ tall. The base is 2-1/2″ x 1-1/2″. The roller is only 7/8″ wide, so please keep that in mind that if you’re using it for the photo wheel. You’ll need very small photos.
One side has small amount of rust, the other is quit rusty.
I’m sure you can come up with many more creative ideas for the caster. I think something as simple as a collection in a bowl would be interesting. A conversation starter.