I about cut a slice off myself to shape into the top part of a SAK toothpick, because mine was recently thrown away after I left it on paper towel while it was covered in pipe resin from a camping trip (I ain't using that thing as a toothpick, and if I really need to, I got an SD for that), so I grabbed this SAK ripoff I had, got the toothpick... it was a bit misshapen, but my intention was to saw it off and leave just the cap to add in a needle and thread in the hollow where the toothpick is. So, I start filing the plastic over the trash, drop it in, search for an hour, and turns out it bounced into my hallway. Now I'm trying to think of alternate uses for my awl, but to expound on this any furthur would be off topic
I was looking at all kinds of things to cut up, plastic dental toothpick/flosses, carving one from wood, but then again, this is a plastic cap that was once a toothpick, not a backspacer, so I'd go with DM and all's advice.