I bought one of those 60-gallon mini-ponds at Home Depot. It's kidney-shaped, and bigger than two 18" round pots put together.
I plan to move all the S. alata I rescued from Covington LA into it, and perhaps add some D. capillaris and D. brevifolia as well, perhaps some D. filiformis ssp. tracyi (yes, I know it is from a different habitat, but they will look nice together), and I may seed the surface with U. subulata.
The center of the pond has en extension that will necessitate digging a foot-deep hole, and I am torn between burying it a little further, or only burying the part that must be underground for the pond to be stable, and then lining the outside with decorative bricks.
I also need to situate it in a part of the yard that isn't watered, but the best spot tends to get torrential overflow from the gutters.
I am also considering drilling a 5-gallon plastic pail full of holes, and burying that in the central well. It will be a gauge of where the water table is, and provide a place to grow some aquatic utricularia.
I think I will fill the central well with peat, and fill the rest of the tub with LFS. I find that Sarracenia do best in pure LFS, as opposed to peat-based soil mixes. If I do that, I may find that the small sundews and U. subulata will not grow in it.