Soak the bark until it is soft in hot water - the thinner the bark the better. Scrape both sides with the edge of a sharp knife until you get the copper color and it is as thin as you can get it (thinner=more bendy and less likely to crack). Coat side of the bark facing the bow with Titebond (or any other PVA glue really) and wrap, not overlapping ( the ride-up on the edge of an overlap tends to crack). Hold in place with twine or innertube wrapped a bunch of times around the handle. When dry sand smooth. No clear coat required, cherry bark is its own finish.