Angry Turtle
Contributor
Some people have good luck with waterproof containers. I can't say I have had flawless luck with them but this is probably the best option if you have a decent waterproof case.If the key and fob are separate...I have cut the crimped ring on rental car keys many times returning it with a split ring...or one time a zip tie!
I use a small "otter" box, and when I want to be safer, and remember, I put the fob in a small Ziploc, then the otter box.