I bought these 1m long x 25 mm wide tie straps with self clamping grippers on eBay for $1.50 each for another project that didn't go anywhere and decided to use them in this simple emery paper holder
The metal frame is a piece of 25mm SHS Al cut to shape with the WW BS.
Attachment 381308
I got SWMBO to sew the two straps together like this so the combo is a bit shorter than the Al frame and then cut the excess straps off.
Attachment 381309
The emery can be reversed so the paper is either firm up against the Al as shown below, or with the paper hanging out in the breeze as shown in the first image.
Attachment 381310
Think I might get some more tie straps and make up a couple of these.