I made my own which are very similar to the DNA. Last year was the first year I used them and they worked great, but they do take up a bit of room. I have about 7-8 dozen Big Al/Dive Bomb decoys and used about 50 of them to make 14 Y boards. Setting up or taking down the boards maybe takes 15 minutes or so.
I don't have a good field pic of the decoys but the second pic are all the y-boards with the exception of a couple of my cousins magnum dekes.