I found a Conair for $25,00 on Amazon, apparently it's ThermaCell butane operated.

http://www.amazon.com/Con...ble-Travel/dp/B0015XV1TA

Several other options are also available at:

http://www.folica.com/sho...s/cordless-curling-irons

I just googled "cordless butane curling iron"

HTH!