Use the paint brush to apply paint on your kid's foot then press on the paper as below. Let dry.
Use the black marker to draw the stripes, antennas and wings. Glue the wiggle eyes on top.
Have your kids paint one of their hands grey then press their hands on paper. But my daughter wants her elephant red, that's fine for me. I don't limit her imagination. Then let the kids draw eyes, ears, tail and tusks on the elephant using marker pens/crayons. Ta-dah! Here is her handprint red elephant!