Lithium Exploration Group Inc. (fka LEXG)

[helpfull]

I know for a fact that you have to be of a certain club to be able to short pinks and bb's.

Even the venerable Tim Sykes is most likely not in that realm. He has to borrow. I think the real players, as long as the stock is below what they short at, are pledged a credit/derivative and allowed to hold indefinitely. But this is for the Mark Cubans and the like.