The mind boggles all of a sudden for my masking/transfer tape roll… Yay another rabbit hole 
I bought a water cooler for an upgraded CPU without reading the installation instructions. The fan block needed to be installed vertically against the front of the case, and my case was not designed for such a thing.
After removing some excess parts I decided to mount it outside the case where there was an ideally sized spot. Now to secure it… I cut a shelf that slides into an old drive bay and locks the block in place.
Not shown are a couple of simple support struts installed behind the block. Everything pressure-fit in place and rock solid.
Next project, finger guards!
New monitor, new mount.
Terrible pic but the mount system that I cooked up way back in the OP was easily adapted to the new monitor – the new one has a 100mm vesa mount, as opposed to the 75mm vesa in the original. Gotta love that sort of reuse, the most practical of cuts.
Made an industrial sized cat scratcher. I did not make the actual scratcher surface—it’s only $6 from Chewy’s for a set of two flat ones. I made the wedge shaped platform and hot glued the scratchers to it. It’s been a huge hit! Maybe they will finally leave the upholstered chairs alone.
The wedge is made of cardboard, and I put a brick in there for weight before I sealed it up.
i like the build. I’m doubtful the kitties will leave your chairs alone. I put several squares of carpet on the walls, but think mine need some of these too.
It just lets them practice for the main event: your chairs.
I was thinking that would probably be the case, but in fact they seem to like the new scratcher more. I think it’s the size and the angle. Cats are so picky.
Totally thought those were pennies as spacers at first glance!
My latest practical cut: Wall-mounted earring and necklace holder. I am not allowed to have a free-standing one, because cats.
This one is actually for a friend, so it’s just temporarily holding a few things so you can see how it works. (The little slots are for post earrings; I didn’t have any handy for showing that function.)
I like this a lot! Especially practical with spaces for both types of earrings. 
I love it! I’ll have to try something similar for my DIL.
Oooo, nice!
My uncle would tape a straw from his broom to the top of a door opening and his cat could jump up and bat it.
It was a mean cat.
Practical cuts are not allowed to look this nice, are they?
Dangling necklaces and cats. just sayin’ 
Dangling cats as necklaces and earrings could certainly be a design idea. I think a few made it to the forum.
They’re too busy knocking stuff over. 
This is beautiful! I love the design!