I'd never seen it before but if someone really likes the felt look, it does look like there are some options on Etsy that don't look like you raided your grandfather's closet and tore one of his suits apart to make a sleeve
like this doesn't look bad:
Image
I wouldn't buy a felt one for myself though.
/grumpy mode off/ Maybe I was being a bit harsh, be boring if everyone liked the same sleeves I guess.