One of our most treasured gifts from BM04 was a pair of glow-in-the-dark shotglasses with a cool graphic of the Man on them. My wife smiles every time she pulls them out.
If a trinket invokes smiles and fond memories (the way Mardi Gras beads used to, before they were a commodity) I see it as a good thing.
Tonight our camp is gathering to finish one of our gift items; bar towels with the Zaphod art on them. Hopefully, they will have utilitarian value as well as serving as a memento.