Have you checked Petco? They sell plants in tubes and some are aquatic and look pretty good most of the time.
I usually buy swords, anubias and wisterias from those and they do very good.
Also found a great large onion once which I love!
The tube plants can actually look dead in the tubes and still be alive. I usually buy the half dead looking ones from Petsmart (they're marked down) and with a little TLC, they look as they should again. I got my anubias, java ferns and swords all this way. (: