Robert Pattinson Blushes At The Thought Of A Certain Piece Of 'Twilight' Merchandise

There's clothing lines, jewelry lines, costumes, board games, bed sets, makeup, posters, cardboard cutouts, dolls, key chains, lunchboxes ...well, you get the point. There's a lot of merchandise affiliated with the "Twilight Saga," but, there's one specific item that perplexes and entertains Edward Cullen himself, Robert Pattinson.

What is that piece of merchandise? Oh, it's the "glitter lube stuff" (his words!), which both amuses and bothers (Jimmy Fallon, are you listening?) the "Eclipse" star.

"I like the glitter lube stuff. I thought that was really funny," he laughed with MTV News' Josh Horowitz during the "Eclipse" junket over the weekend in L.A.. "I was just like, 'I did not sign that! Where is the paper?' I think, yeah, I'm pretty sure it's glitter... I think it's lube."

RPattz even joked that it helps him sparkle in the sun — when he's not playing sparkly vamp Edward. "I've got like a dispenser," he teased. "I just have it on my hands [and I'm like], 'Yeah it's nice to meet you!' and it's like, 'Wow! It works!' "

What is your favorite piece of "Twilight" merchandise? And which items makes the least sense to you? Tell us in the comments!