The Grippians were designed at Projects Unlimited by father and son team Marcel and Victor Delgado. The eyes of the Grippians were dressed-up ping pong balls held on sticks with added tendrils, and the models were filmed inside a water tank so that their 'hair' would drift about as they swayed and moved. The Grippian sphere itself was one of the milky oversized Beverley Hills street lamppost globes, and cries of "Bring on the Street lamp" greeted the prop during filming.