Tools, mostly. I have found a ball-peen hammer, a 1/2" combination wrench, two pairs of channel lock pliers, two pairs of lineman's pliers, a pair of needle nosed pliers with a (obviously malfunctioning) belt hook, and a kitchen knife. I also once found a rubber battery tie-down strap that was a perfect fit for the Kawasaki 750 twin I was restoring. I usually pick them up just to get them out of the road.


Oh, this is over probably twenty or so years of riding.