I was getting tired of the ring-rest on my slingbow (old pic at the bottom, with old cane arrows I've since replaced) ripping the fletches off my arrows, they are only duct tape, but even so it would result in the occassional mis-fire and was a pain to keep replacing them after every session.
I'd seen "whisker-biscuits" used by others who'd modded slingshots to slingbows, but when I looked them up on ebay they were priced at about £40, or at least £15 even for the "refill" whiskers"!!
Now, I get through toothbrushes pretty fast and I keep the old ones around, because stiff bristle brushes are sometimes handy. Brainwave! I cut the heads off two of them, blu-tack and taped them in place and did a quick test. Seemed ok, so I stuck them firmly in place with epoxy (Araldite) with some electrical tape to support them (new pic at the top).
Had a little shooting session today - works beautifully! If anything it's more accurate, and no fletch stripping! Not to mention if I want to, I can also fire lead or steel ball through it without any further messing about!
Result! Total cost: a few pence worth of glue and tape!
Next experiment in the pipeline, when those red magnums die, I got a set of TBblack tubes to go on this slingbow!




