Copernicus Toys Crystal Growing Aspen Tree Official Terraformer kit | Grows in Hours | Facts and Instructions Included… $12.99
Discovery Kids Crystal Growing Kit by Horizon Group Usa, DIY STEM Science, Make Your Own 3 Colorful Crystals $34.95
NATIONAL GEOGRAPHIC Mega Crystal Growing Lab – 8 Vibrant Colored Crystals To Grow with Light-Up Display Stand… $39.99
Thames & Kosmos Crystal Growing Science Kit Grow Over A Dozen Crystals with 15 Experiments, Includes Storage Case & 32… $23.31
The Magic School Bus Rides Again: Growing Crazy Crystals By Horizon Group USA, Homeschool STEM Kit, Includes Educational… $19.99