they mix with the shaving cream or do they stay separate?
use the spray bottle to spray some water on top of the color pattern on one of the plates. use at least five to 10 pumps of water. then let the foam sit for about one minute. does the color pattern look different once you have sprayed the water on top? how does it differ from the color pattern on the other plate?
place your first card with the front side facing down on top of the shaving cream and press it lightly so that the whole card is covered by the shaving cream.
repeat with the second card and the second 