• RICH UNI-CORN TERRARIUM CRAFT KIT: Our craft kit includes everything a girl needs to make a uni-corn terrarium. There are a variety of adjustable music and lights, and girls can make their own uni-corn terrariums with cute uni-corn models, castles, plant models, and glow-in-the-dark crystals! Use imagination, exercise your child's hands-on ability, and grow up in happiness.