If you want me to include a custom size in the files, just let me know in the comments and I'll add it. What items do you want to attach to your backpack, purse, or lanyard?
| Strap Width (mm) | Item Diameter (mm) | Use |
| 20 | 24.5 | Skilhunt H04 RC Mini Headlamp |
| 20 | 25.8 | Camp Trowel (For Turtle Time) |
| 20 | 16 | Hiking Pole / Chapstick |
| 20 | 9.5 | Pen |
| 20 | 18 | Maglight |
| 20 | 45 | Bugspray |
| 38 | 45 | Bugspray |
I've included several pre-sized files for your convenience, but if you need a custom design, open the *.f3d file in Fusion 360, click Modify → Change Parameters.

Adjust the strap width and the item diameter to suit. You might want to reduce the diameter by a few 0.1 mm for a snug fit.

The author marked this model as their own original creation.