Thx Moon, that means alot. I've gotten so much info here, a guy just wants to add to the knowledge base!
The shaving cream test disc is in the dye now and looks promising, here's what i did.
Smoothed it with a ruler
I drew the lines with some big syringes that I got with a printer ink refill kit.
Swirled with a chopstick
and set the disc in
I'm gonna pull it after 4 or 5 hours and will post the results.