I found this craft online, but I can not figure out were! I love how easy/cheap it was.
You pour some bubbles in a bowl and add food coloring to get what ever colors you want.
Then use straws to blow bubbles into the mixture till it is bubbling out of the bowl.
Do not get the food coloring in your mouth. It stains. (For a day or so)
Then you take card stock and press it down on the top of the bowl.
Since we used heart shaped bowls we got heart shaped prints.
A little extra food coloring adds to the page.
Or so I have been told.