With faux bois being so popular, I was delighted when this happened by total accident.
I didn't prime the plywood, but I used a high quality silver spray paint (Krylon Metallic Silver spray paint) and I sprayed on a nice, even layer.
Even though it was nice and even coverage, you could still see the wood grain because I hadn't sanded it first. It was rather rough, but that was OK for my purposes.
I used super-duper-cheap-as-can-be black spray paint over the top.
The cheap black paint seemed to be absorbed immediately into parts of the wood grain. I am convinced that is the cheap (and I'm assuming, watery) paint that is the cause of this, because I tried this with a high quality black spray paint and that one covered beautifully. Cheap paint must just soak into the wood.
I don't know how it happened, and I kinda don't care how it happened, I just hope it'll happen again. (Like a good hair day...)
about Vivienne Wagner