be careful, you know those humidity sensors at the back? The ones that tell the phone people that you dropped your phone in water? Well, My phone has never been dropped in water, but the sensor's have been destroyed because i put part of my phone in my mouth. haha
That's actually a good point. iPhones are renowned for having some of their liquid sensors very close to the outside (in the headphone jack and the dock connector) and easily tripped by moisture or rain, voiding the warranty. Not sure about your particular phone though.
i would show you a picture of me eating my phone because i do that quite often, but, alas, my camera thingy is be stupid tonight and not working. So you'll have to settle for this textual comment. umm.... yeah i hope this curves your cravings!