re: #464 Mostly sane, most of the time.
I’ve been to just about every kid’s science museum we have access to (Portland, Seattle, Vancouver BC). It’s always in the gift shop, and the kids ask for it, and I ask if I can just buy them a box of Lucky Charms.
Then we all forget about it and I buy some chem mini-set instead, because I’m a sucker for science toys.
The worst part being that it’s not even actually something astronauts take into space with them. It’s 110% marketing.