I have never heard anyone using 'Dogpile' as a verb, interesting :unsure:
Depending on how important looks are, you could probably waterproof your existing remote. Search for 'diy waterproof' and you will get many hits (mp3 players, etc).
As long as you aren't going to submerge the remote in the tub, you could just stick it in a ziplock bag (or use one of those food sealers?)