This is the Crystal Series of planet sculpting tools.
The Crystal Hills sculpts Crystal themed hills.
The Crystal Holes sculpts Crystal themed craters.
The Crystal River sculpts Crystal themed rivers.
The Crystal Canyon sculpts Crystal themed canyons.
The Crystal Plateau sculpts Crystal themed plateaus.
The Crystal Mesas sculpts Crystal themed mesas.
The Crystal Mountains sculpts Crystal themed mountains.
The Crystal Chasm sculpts Crystal themed lava flows.
The Crystal Seas sculpts Crystal themed seas.
These are found the same way as artifacts: by visiting a planet with yellow radar waves coming out of it, using the radar to locate the item, and then using your Abduction Beam to acquire it. They have the same appearance as terracoloring tools, so you can't be sure what you will get.