Cat fur yarn

Years ago when I was spinning I did spin dog hair (never got enough to do anything useful with. There is bound to be a local spinning group near you who would beable to help.

Yuk!!!

If all else fails, the OP would find the local sparrows (and other birds) happy to make use of the surplus fur.

Birmans eh! Love them.

This looks like an interesting book, and not as ambitious as knitting a jumper.
Crafting with Cat Hair
My brother used to have a Birman called Raffles but he left home and moved in with my mother, who lived nearby and had tastier treats!

Sorry OP, that doesn't help with your quest does it? You should contact your local WI as I used to know a few spinners , so a likely source.Don't know if they would want to spin cat hair, but you never know.

Our DD has a Birman, long cream hair everywhere! He only really responds to our SIL and follows him around like a dog would.He sneakily bites our DD and DGS!

We could most certainly provide enough moulted cat fur to knit hundreds of jumpers! nansypansy you are so lucky to have Birmans. We had one which we loved dearly until her sad demise. She was a great character -a little tart who wouldn't even look at me if there was a man in the room!

You are pulling our legs, arent you?

You could advertise locally and see if there is a spinning/weaving group nearby.