I tell ya what works good.. a pair of cheap rubber slicker "over boots".
They're designed to slip over your shoes.. real good thick rubber that cuts nicely with a pair of tin snips.. most folks have an old pair laying around.. or you can pick up a new pair for under $10 at WalMart or KMart.
I've used 'em for mirror arm gaskets, for gas tank filler neck gaskets on both my '46's, for rubber to put under the bed blocks of my 1/2 ton '46.. even cut one for use as a piston ring in an old air compressor... and I still have a boot and a half left!
