The eyes of the Grippians were dressed - up ping pong balls held on sticks with added tendrils .
The models were filmed inside a water tank so that Grippians ' ' hair ' would drift about Grippians they swayed and moved .
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 .