Haha cool and unique product for sure. Although I personally do not have a use for this, since I basically never need a straw to drink anything (more the bottle guy) it seems a good way for people using straws more often. Also it has to be clear to you that you wash of the straw after (most likely it will otherwise be sticky) and before every use (guess there are a ton of bacteria on that thing after you wore it on your hand all day long).