I did some quick experimenting at school today between classes. Sadly, I didn't have my camera, so I didn't get any pictures. I used foaming, sensitive shaving cream and sprayed it about an inch thick onto a tray.
These are the tests I did:
(1) First, I tried my own watercolors, just adding water to my existing dry watercolors (instead of mixing fresh, liquid watercolors). I tapped my paint brushes to sprinkle paint onto the shaving cream, swirled with a stick, and then laid a piece of un-mordanted cotton sheet I had left over from a previous project. I pressed the dry cloth down, smoothing it over the shaving cream, and then lifted it off. Then I used a big popsicle stick to scrape off the shaving cream. I learned:
- A small paint brush does ver small dots of paint! Larger paint brushes should be used
- The natural, re-watered watercolors did not spread well through the shaving cream, and were faint when applied to both cloth and paper.
- The paints smeared on the cloth when I used a popsicle stick to scrape the shaving cream off (they didn't smear as much on the paper)
- I tried rinsing the cloth....and most of the watercolor came right out. This was good to know, because some kids might be sad that their design didn't turn out, and this would allow them to rinse and retry.
(2) Second, I tried paper. I added more paint onto the shaving cream, swirled more, and applied the paper. I learned:
- The design on the paper was a bit more vibrant than the designs on the cloth, but it was still very faint.
- When I scraped the shaving cream, it didn't smear nearly as much as when I used cloth
(3) Third, disappointed with how faint the re-animated water colors were, I tried mixing just pigment with water. I learned:
- This didn't seem to work much better. I think the pigment is just too heavy?
(4) Fourth, my coworker had food coloring. So, I gave that a try. I found:
- The colors were much brighter!
- The colors spread father when swirled, giving a much nicer effect.
(5)I also tried marbling some paper and the cloth without scraping the shaving cream off. We'll see how this works!
I got home and decided to try mordanting the cloth I have at home. My jar of alum actually has instructions for fabric marbling (2 tsps of alum for 1 gallon of warm water. Submerge in the alum bath, wring out--don't rinse--, air dry, and iron if needed). I currently have the cloth drying by a heater and a fan. Fingers crossed that it'll be dry soon so I can cut it up for their book covers!