Both functional and attractive, the space capsule astronaut tea infuser is one of the best astronomy gifts you can find online. Cast your mind back to the space race. The anchor for this infuser is an astronaut in full flight gear. The little guy is attached to the stainless steel capsule, which holds the loose-leaf tea. Infuser opens by unscrewing the capsule’s heat shield at the top. The infuser is 1 ½ inches in diameter at the base and is 1 ¾ inches tall with a 5 ½ inch chain.