I found a great website "Sutton Outfitters" that sells these cool rubber clamps QUICK FIST used to secure a multitude of items.
I bought a couple to mount a short shovel on my trailer, When they arrived I was more than impressed
with the design, quality and uses. They mounted with a single bolt and hold tight!
I plan on getting several other sizes to hold tools, and rigging for my trailer.
Check them out!
Sutton Outfitters Inc.
161 Leesville Rd.
Jackson, NJ. 08527