For my Nola Boxers I built a pair of 20" stands that put the tweeters at ear level while sitting on my couch. The Boxers sound great in that setup.
The front edge of the couch cushions is only 15" off the floor, though, so you'd want to adjust for your own sitting position.
The top and bottom of the stands are two glued-together layers of MDF, 11 1/2" X 9" on bottom, 9 1/2" X 7 on top, and the center column is 4" diameter PVC pipe filled with sand. Finish is flat black spray paint.
