Halloween Craft: Glow in the Dark Painted Cornstarch Clay

Here’s a fun Halloween craft using glow in the dark paint, cookie cutters, and homemade cornstarch clay! We used our Halloween cookie cutters to cut shapes in the dough and painted them with glow in the dark paint.

I first saw cornstarch and baking soda clay turned into ornaments at Full of Great Ideas. I was impressed by the bright white color. Salt dough never looks like that. I had to try it. I followed the directions for making a half batch. The dough turned out a little sticky, so it wasn’t very fun to play with. I probably should have added a little cornstarch, but we were ready to roll it out, so I didn’t bother.

I’ll be honest. I’m a little disappointed with how this clay turned out. As you can see, cracks formed in the pumpkins when they dried. I thought I did everything the same as Stephanie. Hers did not crack. I chose the air dry method that she recommended. The only difference that may have caused the problem was that Stephanie flipped her ornaments right before she went to bed. I didn’t flip my pumpkins over until the next day. They cracked when the second side was drying. I tried a few different thicknesses. The thinner ones didn’t crack when flipped. {There are several different recipes for cornstarch clay around. If you have one that you like, I would love to hear about it!}

After the Halloween shapes {pumpkins, ghosts, and moons} were dry, we painted them with glow in the dark paint. We used orange and green glow in the dark paint. We let them dry and painted them with a second coat. They glowed in the dark pretty well but faded quickly, so we added another layer of paint. The thicker the paint, the brighter and longer the glow. To extend the glow, you can also charge the paint in the sunlight (or overhead light) for a longer time.

Have you ever made baking soda and cornstarch clay? How did yours turn out?

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