Gotta side with Dave on this one.
You should take the bow and lay it in a small wooden boat. Inside the boat should be this bow's arrows, quiver, arm guard, and tab/glove. Don't forget a picture of you and the bow to be included in the stash. Be sure to leave room in the boat for a virgin maiden from town as well.
The boat should then be doused in lamp oil and cast off upon a lake at sunset.
A arrow set with flame will then be launched out to the craft.
The bow will then be sent to the halls of your fathers and will be waiting for you for all time.