I was wandering around Walmart this morning and discovered their swim caps were on clearance for $0.50 These are silicon skull caps that are very stretchy and tear resistant. Picture here.

I have no use for one but I bought it anyway thinking there's got to be some survival/preparedness use for them. Not just as a waterproof hat but possibly converting it into a waterproof gear holder or something. Maybe it'd help keep my head warm under my hardhat, though I'd worry about flammability/melting issues.

Maybe a portable sink? Head cover under a gasmask?

Any thoughts?

-Blast