I need ideas for repurposing the yellow plastic inner from Kinder eggs

[seasonofmellowfruitfulness]

We have about a hundred of those yellow plastic capsules that you find inside Kinder eggs. I am keen to get rid of them. Before they get chucked into landfill however, can anyone inspire me with ways of repurposing them? Thank you!

I’m sure I have read they get pushed up the bottom .
I haven’t tried it personally, but I imagine you would have to be mindful not to clench. They do pop open rather easily.

I suppose for arguments sake , we could just say it’s personal preference where you stash them .