Chemical or Device for Magic effect

This thread is probably destined for a short life, but…

I wouldn’t call myself a magician by any stretch of the imagination, but I dabble. Won’t be quitting my day job any time soon.

I’ve been trying to figure out a way to have something heat up in some one’s hand. Not not enough to hurt (obviously), but enough that it is noticable. IIRC there’s an effect that uses tinfoil, but I’m more of the mind to use paper (due to the nature of what I’m trying to portray).

My first thought (and what I worked around with) was that it would be chemical in nature. Those handwarmers sprung to mind you see. I couldn’t really use the liquid-ish ones for obvious reasons, but there’s those new air activated ones that I thought could be wrapped up in some paper and switched in. But they don’t generate enough heat. You can’t even really feel them.

I was going to write and ask if there was some chemical combination that would work, but it just occurred to me that maybe a small heating element device could be made with a watch battery.

Any opinions? I could, of course, say at length exactly what I want to do. But then, that would be telling.

Thanks.
AbSimia

Hi AbSimia. Search this site. I seem to recall something of that nature on there. If not, it is still a fun site for an amatuer magician.

The chemicals used in the “Heat Tinfoil” trick are dangerous, for both the magician and spectator.

(So I’ve heard from James Randi)

BTW: As a semi-pro I can tell you that in the last 3 years, spectators are becoming more “Technology suspicious”.

For example,if I have a blue spot card that changes to red, it’s easy for spectators to think that “the red spot can change to blue”, either by chemical means or optical means.

(I’ve had them grab the red card and tilt it, trying to get it to change.)