Found more stuff!!
Added to the list of items are Much More tire warmers! These are the black can type fit to sorex tires. I also used them with RP30's although they are a little loose, just used blue shop towel around the tire. I used these like 3 times, and made an adapter to go from tamiya end and plug straight into your DC power strip or just use a stick pack. Much More model MM-TW.
Price is $40 OBO, can combine with car for a package deal.