For the past few days I have been saving these from going in the bin. They are the screw tops for small pouches of baby food. Every time I feed my baby, I think about what I can use them for.
My feelings at the moment tell me they would make good exhaust ports or ventilation fans. I worry about painting them, as they are very shiny, but hopefully I can do it. With infantry on the way, I need to quickly put together some things for them to fight over, so these might be good representing an underground base.
Does anyone else have any ideas about this too? Anything obvious I have not thought about?