None that I know but I know E*Trade will fill an order at .0001 for less than .0001 if those shares are available.
Scottrade fills orders at .0001 even if cheaper shares are out there. I don't know if Scottrade pockets the difference or actually pays the full .0001 for them.
Many shares that go for less than .0001 especially larger blocks are often the company selling shares to a toxic lender.