I needed a quick and simple way to mount my vinyls that also aren't shelves and wouldn't risk falling. I had originally designed with left and right handed parts, but for corners how I show it isn't necessary but does provide some more grab on the top corner, so mirror one of each pair if you choose.
First mark where you want your vinyl, then drill in the screw piece so that its face opposite the point is flat to the face of the vinyl you're supporting, and that the corner of the vinyl is at the midpoint of the mount. After that, slide the cover piece over the screw and you're set to mount.
By mounting with the corners removal is trivial by slightly rotating the upper mount and lifting your vinyl off, replacement is the opposite. Hope you enjoy!
The author marked this model as their own original creation.