I've used dental floss for all kinds of things. To make tied-on nocksets. To keep a busted serving from completely unraveling until I could get back home or to camp to replace it. Tied it on oneend of a flemish string I was makingto keep it from untwisting while I twisted up the other end. Once, when trying to rough set the tiller on a single cam bow at the range, I didn't have any string to stretch over the axles, but I had dental floss in my kit.

Much to my dentist's lasting dismay, I use it more on my bows and stuff than I do on my teeth.[8D]I've always got a couple of spools of the stuff in my box of archery goodies.

But I've never actually used it for serving.