WOW! Funny thing.........
....I JUST made some stands like these last week. I got the idea off of some guy in another forum. I believe it was NYCdrew. He had a couple of shots he took of his and i was in need of some stands since i just picked up a pair of Event 20/20bas powered speaks from a guy who (get this) gave them to me in exchange for helping him out on writing some songs and whatnot. He had em laying around and had no use for em. Thats another story though.
I made my stands out of the same material as Flat above. PVC, toilet flanges, and wood. In my case, I bought some fairly nice wood I got at the hardware store (Menards). It's a stair cut into four pieces essentially and sanded round all the way around for looks. The PVC is put together with PVC glue and filled with sand.
There is a trick here though. I used the nuts that countersink themselves when tightening the bolts (see below pics). I did this because the speaks are heavy so I wanted them bolted, not screwed. The trick is....since the holes are drilled and wood mounted, if you are not careful the top and bottom wont match. They will appear twisted from each other. Do one end and lay it on the floor. Put the glue on the other end and place push it on using the floor the make sure they are even. Does this make sense?!?! I'm terrible at explaining things like this.
Then I took the bolts out and put some RTV gasket stuff around the toilet flange for zero sand leakage, put the wood back on and rebolted. Now I filled with sand. Made sure to bounce it up and down a few times to let the sand settle and put RTV on the top toilet flange and rebolt.
Hope this makes sense!
Here's some pics.
Here they are in use. You may also notice the grey squishy rubber cabinet stuff to keep them from vibrating off. Someone also mentioned this above.
) Thanks again!