You could recover some dining chairs or an ottoman. Or even a table or desk top. I recently read that leather can be painted or dyed using special leather products, but must stay in the same color family just darker/lighter. Leather could be made into some useful clothing, but I suspect that it would take and industrial sewing machine to sew through it.

no need for an industrial machine.
use your thickest niddle and HAND CRANK your machine, dont use the motor.
use your hand and the machine’s wheel to slowly pierce the leather piece.
you will have plenty force, and leather don’t need too many holes, so it won’t take long.
use the machine’s biggest step, though.
and a strong thread.

It’d make nice wallets, bags, and holders for things like a belt pouch - I made a leather belt loop to hold my secateurs ‘cos I always need to put them down for a minute to use both hands.

If it’s quite thin leather then it’s reasonably easy to sew - try putting it though a sewing machine in single layers to punch the holes, then sewing it by hand using the ready-punched holes.

Use natural fibres (e.g. cotton), as polyester etc can cut through the leather.

If it’s thicker leather then it’s good for sheathing blades and protecting things - maybe you could cut out squares to use as coasters? The suede side would stick to a table nicely.

You could cut the leather into thin strips and latch-hook them into a trendy Shag Leather Pillow or even a throw rug if you think you have enough. Though you could probably mix in some of the more worn leather to make use of it too.

It actually looks good enough to make a patchwork skirt from — I don’r know about your sewing machine but mine is fine with even quite thick leather if set to a slow speed using the largest needle I can get. If you’ve never worked in leather for this type of thing then do look at patchwork leather handbags — lay pieces flat and zig-zag don’t overlap or try to seam as you would with a woven fabric.

A new purse or totebag! seat cushions for hard chairs! work gloves!
my son does archery and a leather arrow quiver would be very appreciated-his current one is recycled denim, its simply a long skinny bag with a drawstring top, easy to make.
cut into strips and wave for a throw pillow or awesome wall hanging.
a patch quilt combined with denim.
wow if I ever see a leather couch in tatters, I am going for the leather!

Hi:
I think it could be cut into strips and braided into a men’s leather belt.

old leather can make awesome masks and sculptures. just soak over night and shape with your hands into what you want and allow to dry.

I have used scrap leather for bookbinding. You can find bookbinding directions online or at the library. For mine, I cut the leather into a rectangle, sewed groups of pages (folios) to the middle, which creates the spine. I’ve seen some really beautiful professionally made books and photo albums with leather covers.

I had a lovely old suede skirt - shallow circle - that I took all the seams out of and ended up with triangular panels. I intend to make a nice pair of snug knee-length shorts out of it, and also - which is my primary suggestion due to possible size constraints - a pair of soft fitted shoes, hopefully with soles made of cast-off tire-rubber.
You could also brand designs onto small rectangular pieces, soak and let dry to harden a bit into a curved shape, punch holes in the ends and use as a hair tie-back - either attach an elastic to the holes or push an old chopstick through.
Small bits would also make excellent patches on work clothes at knees or seams that are wearing through.
Very small pieces would work well as tie-on thimbles when sewing - same concept as the hair band - or replacements for missing zipper-tabs.