Originally Posted by saddlesores

well, if CHEAP is what you want, how 'bout a couple 2L soda bottles
and some zip ties? oh, and duck tape of course.

cut top and bottom off bottles, then a vertical cut.
reinforce one edge with duck tape, punch a few holes
then zip tie to the front rack edge. plastic curled
over the front of your panniers acts as brush guard.

or you could just bolt a couple ammo cans to the top bar....