3D Printable Voile Strap Keeper

I ordered a bunch of custom Voile straps for the first edition of the Artist Series Bottle Set. However, I neglected to get some strap keepers with my order. Rather than buy 'em, here's a free 3D printable model. Models like this already exist online, but I felt better remaking it so that I could include it in purchased sets without fear of transgressing on someone else's share license rules.