My personal watercolors often have texture applied,
prior to painting, using Liquitex modeling paste. I apply
it with a palette knife. The texture takes the watercolor
well. It's something you need to play with first. My students
have used this technique as well. I had them do small test
paintings first to get an idea as to what might happen.
I've never done anything like cakes so I don't know how it
might work there. Watercolor uses the white of the paper
and you probally want cake frosting mostly white.
Good Luck, Woody
> I saw a clipping in an old School Arts or Arts and Activities that
> looked like a lot of fun. Kids had brought cakes to class to paint. On
> their canvas or boards they had built up the icing with whatever medium
> you would use to create dimension and texture. I have sax ultra plus
> tempera in my classroom. Anyone have any idea what I could use to build
> up enought body to use knives to ice the paint onto our cake paintings?
> The cakes themselves looked to be sponge painted for texture and flat,
> but the icing was definitely on the 3D side. Sounds like such fun. I
> am also wondering if there is anything rubbery enough that we could use
> on watercolor paper to get adhesion but not have to invest in boards.