What was the name of the pen that erased with heat?

Frixion?

Frixion Pilot pens

And they are wonderful! Look for them on sale with school supplies.

After seeing them here on the board I went on a local search for them. Not at Michaels, Joann's or Hancocks. Not at Office Max. Found them exactly where board member (sorry, I forget who) said they would be --- STAPLES. Picked up a 3 pack of black for $5.49. Also had all blue pack and red,blue and black pack for about the same price.

Clover makes one that I like real well

Have checked Office Depot, Target, Walmart and any other store in my area that carries school/office supplies. No luck yet. Would like to get a mixed set...guess I'll just keep looking!!

Missouri Star Quilt Co. has them. I found mine at Pamida. Love them!! They also come as highlighters and they work the same way but the lines will be thicker.