Discover How to Create a Watermelon House with a 3D Pen for Your Pet Rat or Hamster! In this tutorial, we'll guide you through the process of designing an extraordinary watermelon-themed house using a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." A 3D pen is a crafting tool that works kind of like a hot glue gun, except what comes out is warm plastic ...