They are these thick, stubby crayons that can be used dry, wet,
melted with a heat gun etc..They are by Stabilo...they used to be
available individually, but I think that now they are only sold in sets.
I know alot of different paint and pencil manufacturers are making
watersoluble products, from paint sticks, to blocks, to chalks etc...
What are they going to come up with next? Maybe watercolors that
are not watersoluble! Huh? Well that's almost as strange as oils that