What about chalk/pastel dust on water - it has been a long time - but I
remember doing it successfully before - probably used a small piece of
sandpaper over a block and pulled the pastel over it so the dust settled on
top of the water - then placed the paper on the surface of the water and
pulled off -
Ellen
> Preferably something that can compare to paper marbling as they were
> really looking forward to it.
>