i plan to build one soon. i have it all planned out already. the backing of it is going to be in the shape on an arrowhead. towards the bottom of the arrowhead the bow ill be placed on a piece of wood that will fit the one side of my bow that it will be resting on. as for the arrows, i think that i will drill 6 holes on either side of the arrowhead and have them sticking out.

if that didnt make much sense PM me and i may be able to draw it out on the computer.

good luck with the project!