Not that easy, B.H., First, you may have problems online with market orders for .0001 or .0002 stocks with no bid, second, your Broker may charge more if you have to contact by phone.
Tried it once for AMHD. My Broker is good, same commission as online but was revised by an Analyst who phoned before approving.
Then, you're more likely to get .00001 than .00005.
Unless it's a huge amount of shares, seems better to just have an open sell order at .0001 and hope for the best.
g.p.