If it's yours too, here's how I made mine.
Supplies:
Paint
Scissors
Rolling Pin (mine is a metal tube from a home improvement store)
Air dry clay (you can actually make this if you want)
Sponge
Wax Paper
Step One
Lay the air dry clay between the wax paper and roll it out. As you can see on my rolling pin, before I used the wax paper, it got all over the rolling pin and wasn't pretty at all.
Step Two
Inspect your clay to see if it's the thickness you want. Mine is maybe 1/4" thick, but just use your own judgement on it.
Step Three
Squirt out your paint and dab your sponge into it. Make sure it doesn't have a lot of paint on the sponge because too much paint means you won't see the little lines in the foot.
I have no idea why this picture is uploading upside down. The fuzziness is trying to hold Wombat and take a picture of her foot.
Once you get the paint on, it should look like the above picture. Well, that's if it's not too blurry for you. Also, bright red is a Christmas color, but it kind of looks like a bloody baby foot, which is not cute.
Step Four
Stamp the foot. Try to have them not overlap like I did, but I salvaged two feet prints from the three.
Step Five
Cut out the cute little feet and add holes.
Step Six
Put them somewhere safe so they can dry. I'm also going to sand the edges to make them a little nicer looking. Since the red feet look like bloody foot prints, I'm going to outline them in green and tie a green ribbon on the top.
Oh, and don't forget to add the date to them with the baby's name so you're not sitting around once they're grown wondering which kid belongs to the footprint.
