This was a grand time in my preschool class for making original halloween art, the preschoolers from age 2 1/2 to 6 years old enjoyed it. It took 2 sessions because the paint had to dry, perfect activity times with a break in between.
Google eyes makes it purrffecct but if you are out of wiggle eyes substitute poms, rolled up masking tape pieces, beads, anything for a fun 3d halloween effect! There's a download for directions at the end of the post.
HOW TO MAKE PUMPKIN POTATO STAMPS: