If you are looking for a way to keep your stuff from pounding around inside or outside your vehicle, the answer might be here: End of the Road Inc. from Nashville makes rubber anchors called "Quick Fist Clamps" for anchoring all kinds of stuff for both easy access and to keep items in place as you bounce over the rocks and ruts in your explorations of the back country.
It appears they began by making stuff to keep fire and emergency tools safely stowed on trucks. Their solution seems to be a great fit for off highway vehicles.
They offer a wide range of clamps, straps, and brackets that just may put a dent in the bungee cord market. If you have struggled with keeping your fire extinguisher, hi-lift jack, shovel, and other "must have stuff" from bouncing off you and your passengers, your search may be over.
Check out www.endroad.com. They sell direct, with low cost shipping!!!! You can also find some of their stuff at Cabelas and Amazon.com.