Could you use nail polish to decorate a pumpkin?

Depends how glossy the shell-skin is.

You can use the same technique for a pumpkin. You need a bowl of water, make sure the water is warm too hot, and will your nail polish on top. Swirl the object you wish to marbleize through the nail polish.

https://www.marthastewart.com/1506202/marbleized-pumpkins

Sure why not. Just don't eat it afterwards.

Think I will try on a mini one first, even have some glow in the dark polish!

1St I filled a container with water (large enough to fit your pumain in )

2nd wash the pumpkin with 15 drops of dõTerra lemon ESSENTIAL OIL'S & water & water.

3Rd dump nail polish in the container of water. Making swerls with a stick in the container of polish &water. Yes, the Polish will float on top of water.

4th holding pumpkin by it's stem, dip into the container of water and polish .1 side @ a time., rotating the pumpkin slightly. REPEAT on other side.

I use this method to dip coffee cups &they turned out beautiful. I'm going to be doing gourds this year. My grandchildren are carving out the pumpkins. Have fun!

HAPPY HALLOWEEN ;-)

Great idea for kid crafting... thanks!