Lava Lamp, Rainbow Glitter Lamps with Automatic Color Changing and Clear Liquid, USB Cable/Battery Powered Home Decoration Lamp, Perfect Room Decor for Kids Teens Adults Birthday Gift Party (Blue) - Amazon.com
Ceramic Rainbow Lamp - Pottery Barn Kids Australia
Urban Shop 16" Rainbow Lava Motion Volcano Lamp, White Wax in Clear Liquid, Rainbow Painted Metal Base - Walmart.com