TeaSub, an infuser made by Israeli design studio OTOTO, adds an element of adorable not usually seen with tea paraphernalia. You can drink your tea while watching the little boat float around in your cup. Maybe there are tiny little divers in there, screaming to be let out. Ha! OK, maybe I should relax and have another sip.
Unfortunately it isn't available to order online yet, but hopefully I'll be able to add it to my collection soon.