Lots of people asked me where I got my Crayola gel fx crayons last week. I got them in Asda, but I can't remember how long ago!

They don't seem to stock them any more and they aren't listed on the Crayola websites
http://www.crayola.co.uk/
http://www.crayola.com/

This Crayola product is also great fun - I'll try to find an example to post.

Crayola colour explosion paper