Other Uses for Small Rubbermaid Containers?

I would like ideas for reusing for square food containers, other than food. I recently bought 8, one-half cup containers with lids from Rubbermaid. They are squares and they are way too small for food use, in my opinion.

Does anyone have any ideas on how I can use these containers for other things? They are so small.
Thanks.

By AKate from USA