http://www.bhphotovideo.com/c/product/419200-REG/Smith_Victor_701520_TR_56_Camcorder_Accessory_Mounting.html
I have one of these and they work well. It screws onto the bottom where the tripod goes into and has a female thread so you can still put it on a tripod. Get that and some type of adapter like the one I linked already, maybe a smaller one if you can.
I got one of these a few days ago, I removed the top hot shoe mount and drilled a large hole in it's place. Now I'm going to use silicone caulking to pour mold a shock absorbing grommet/washer to insulate the DR-2d from the mechanical handling noises of the camcorder. So far, so good.