I recently borrowed the book Layered Impressions, by Katie Kendrick,
from the library. I'm trying to work my way through some of the exercises
before I return it. The first exercise is a collage-based painting that calls
for stacks of light, medium, and dark bits pulled from magazines.
I'll post updates as I (hopefully!) progress through the book's ideas.
Oh, and as for the fruit flies, they've moved on.
I guess the soap wasn't the main attraction!