$5.36 (after tax)
2 yards heavy duty 1� elastic
12 brass grommets with set tool
1 hr of my time
Easy to see what I did, ran the elastic around the gun, lined it up with 1� of overhang elastic, set grommet, screwed into wall of safe inner door, glued overhanging elastic back over screw/grommet.



NOTE: if I did it again, only one strap needs to be elastic, I think it would work better if one loop was webbing, and hang more vertically so more weight in on one strap. This was so cheap and easy I may replace ½ of my work with webbing (webbing is what you might see as the strap on a backpack or luggage)
Note #2: I used a lot more material then I thought, 2 yards = 4 guns, (I wanted to hang 6,,,) each gun was around 16� of material,