When it comes to creative toys, 3D pens are one of the latest innovations to take the world by storm. They’re not quite 3D printing, but they’re a much cheaper and more efficient way of creating miniature sculptures than 3D printing, or conventional clay crafting methods. Essentially, a 3D pen is like a hot glue gun, in that it melts plastic just enough so you can use it before the air cools it and it goes solid again. This means you can make plastic sculptures for very little effort or cost. So if you have a creative mind at home, whether they’re a kid, a teenager, or an adult, chances are you have considered getting one. But which ones are available, and how do they compare?