I'm don't have a picture handy, but I took an old champagne cork (one that had plumped after extraction so it was basically a fat cylinder) and, with a wood rasp and sandpaper, cut two dish-shaped grooves: one lengthwise, in which the flashlight body sits; the other transverse to fit the bars. I use a piece of an old inner tube to lash/tie it to the bars. You could probably use a Livestrong bracelet as a fastener if you wanted to get fancy. It's a bit funky but it works and weighs almost nothing. Cost me about 15 minutes of filing and sanding. Of course, the champagne was extra.