Perhaps surprisingly, Lambert actually takes a moment to consider that question seriously, looking at Papyrus' tail then back up at him.

"Depends what they're made of and what else you're wearing," he says finally. He waves a hand, gesturing at the rest of what Papyrus is wearing right now. "I don't think they'd go with that. Maybe you could get, uh... what do they call those things?"

He'd seen some of the girls at the celebration passing by with them earlier... "Those bracelets that glow in the dark."