About 2-1/2 years ago while my family and I were on vacation we received a call that, Slinky, our dare devil wiener dog jumped off a bed and due to a vet's bad emergency care he became paralyzed in his hind end. He has never been able to walk on them again. We tell people do not feel sorry for our dog. He does not know or care that his hind legs and tail no longer function. He wears a regular baby diaper, but put on sideways, it only needs to hold his wiener in. He has a wheelchair that my husband built out of PVC pipe. It also has changeable wheel for the different terrains. When he is in the house or our small yard he prefers his drag bags. I looked them up online and the cost was crazy. So after many trial and errors I finally came up with the perfect bag. It holds his legs in nicely and is easy to put on and off. I am now working on a bag for him that will sweep our wood floors as he plays and runs around. I am thinking of a kind of fish tail for this LOL I the winter time I make the bad out of sweater shirts or fleece for warmth. He does not know when his back end is cold so we always keep his back end warm.
I also have instructions on how to measure you little friend for a more fitted drag bag. Check it out on CO&K Paralyzed Dog Detailed Drag Bag Instructions
It is done. Every time we change his diaper or he has been playing outside we change his bag. So we go through quite a few of these a day. To put it on Slinky we put his butt and tail into it with the slits on the top and pull it up to the back of his front legs. Next the strap goes between his front legs, then each side pulled through a slit and tied. He sleeps and plays in these. They hold his hind legs up against his belly and keeps his diaper on. I also sew some scrap leather or suede I find and sew them onto the bottoms of the bags to help protect his butt and legs.
UPDATE: Slinky loves his new bag design. We have realized that the shoulder strap should be wider and at more of V or T shape. This helps it stay on and does not pull as much. Speaking of the pull, I have also started making them in 2 separate sections that I can sew together. That way the body tube can be a more stretchy material and the harness part can be a fabric without that much stretch. I am also going to sew a piece of suede on the bottom of the tube, where his hind legs and butt are. No matter how short his nails are they come through, the suede should stop that. If I put the suede where is butt is he can slide easier outside and with a little padding inside his thumping will be easier on his butt :-) LOL when we wash the bags with leather they get wrinkly, but they still work great :-)