Hoberman Sphere Expanding Ball Toy Sensory STEM Breathing Exercise Kids

Hoberman: Mini Sphere - Firefly Glow

Hoberman Original Glow in the Dark Universe Sphere Expandable up to 30"

Hard To Find Orb Squish-o Sphere - Dolphins Aquarium See Note

Chuck Hoberman Super FLIP OUT Collapsible Skeletal Sphere Ball Puzzle Change Toy

Chuck Hoberman FLIP OUT Collapsible Skeletal Transforming Sphere Glow Dark-VtG

2001 Chuck Hoberman FLIP OUT Collapsible Skeletal Sphere Flips Every time! A++

Crookes radiometer, specifically the model "The Sphere Powered By The Sun TEDCO.