I stole this idea from somebody on these forums (I saved their post but not their name!) Whoever they are- thanks for the great idea!
Made an artificial slate outcrop of styrofoam and grout for my GBK Phoebe. Unfortunately, however cool it is, it's likely temporary because I made a few critical mistakes because I'm a cheap college kid!
She loves it for now, either chills in her little drawer or explores the new digs. Here's some photos of the renovated tank.
I hope to make a more permanent installation with what I learned in the future, and put some live plants on the cool side.

