Ozbow

Not sure how applicable this would be for wood bows (like with a bamboo backing), but here's a cheater way to make your own heat-strips:

http://tradarchers.com/forum/index.php/topic,221.0.html

Skip straight to reply number 14.

Not sure if I'd be willing to try it, but someone here might.

I like the theory but I'd be nervous about trying it... He talks about low voltages ("so it must be safe") but it's the current that'll get you. A tazer works on 10mA, he's running an order of magnitude above that. Besides, it relies on the air pressure method, which doesn't suit everybody's set-up. Good idea, in concept, though.