MyFishFinder.com Just like iceshanty but warmer
I copied this guys with the conduit (first set of pics) and it works great, not to mention inexpensive.http://www.iceshanty.com/ice_fishing/index.php?topic=129074.0
I found a thread on here where a guy made one from pvc and chain. We rigged one up this way and I works great.
A couple 4ft. pieces of 3/4" pvc and run rope thru them . Tie a loop at top of the "triangle" tie a couple caribiners on the wide end. I put an eye bolt on each edge of sled front and this way hitch is easily removable. Total cost about $10 and very light takes up no space.