Spread shaving cream in a thin layer
add liquid water color paint and swirl with a tooth pick or chop stick
Press paper on top of shaving cream and paint
Pull paper up and squeegee off the excess shaving cream
Hang to dry
Scoop up left over shaving cream and get ready for a zombie attack
***Update 2/20: The water in shaving cream evaporates after a few days and leaves a papery-foamy substance that somewhat resembles dryer lint.