Looking for thin/flat temperature sensors..

I'm looking for a thermocouple or some sort of flat/thin temperature-sensing device. The important temperature range will be 60-150 deg F (15-65 deg C). Ideally, it would be the thickness of single-ply cardboard or less (not corrugated cardboard), perhaps 1/4 inch wide and 2-4 inches long.

Can I buy wire that is sensitive to temperature, or is there some off-the-shelf solution that would work well for this?

Check out Omega. They have an incredible variety of thermocouples.

A standard bead type thermocouple would probably fit the bill.

-j

Thanks much. Here's what I'll end up using:
http://www.omega.com/ppt/pptsc.asp?ref=SA1

Those are what I was thinking of when I read your description. I think I saw some on ebay in the last couple of days.

-j