Stuck on my current project

My update of the bike mounted steadicam arm is stuck at present. I'm still looking for a way to mount the RC shock absorbers to the inside of each iso-elastic arm. I may have to custom build/modify some existing mounting bracket from the RC world, but I was trying to keep this project as inexpensive as possible, and the RC parts are pricey. The set of two shock absorbers alone, were ~$20. I'm hoping to get something done with it this week/weekend, since the weather doesn't seem to be cooperating with bike riding. My plan is to find some bolts or screws with a large enough heads to cut a slot, for the ends of the shock to be mounted, and drill holes to allow for a pin or small screw to pass through, to hold the ends of the shocks.