Well, I'm probably aged out of the real category of wearing these

("Darling, I am growing old, silver threads amongst the...ah, um...copper? mahogany?")

but they still make me laugh my fool head off:

Literal heavy-metal t-shirt

one of my favorite chem in-jokes ever

and my favorite (It is funny to me, I think, mainly, because I imagine Pluto speaking in Eric Cartman's voice).


(Spotted the link over at A Sweet Familiar Dissonance. She linked to the capsaicin shirt, which I will need to keep in mind for the next time I need a gift for my brother.)