The idea behind these was that they were going to act as the "wall" pieces. That's why they are all on 2x6 Plate bases -- or longer. They're mounted on a variety of 1x2 Jumpers, 1x3 Jumpers, or 2x2 Jumpers to change up the distance between them.
This shows how each Seaweed piece is spaced out when using only one type of Jumper per Plate. I also made them size comparison pictures so you could see how Frames could hide behind them.
I assembled a bunch on a 4x4 Plate but I'm not sure if I'm going to keep them there. As always, I hope this gives people ideas or techniques to use in their terrain builds. Flickr page.