I've just acquired the most dreamy 1930's black silk velvet dressing robe / hostess gown 
However it's got a weak seam at the back of the neck - does anyone please have a scrap of black silk velvet or a black silk velvet item that is beyond repair I could use to reinforce the seam with? Random request but thought I'd ask on here just in case! I'm based in the UK.
Thank you!

However it's got a weak seam at the back of the neck - does anyone please have a scrap of black silk velvet or a black silk velvet item that is beyond repair I could use to reinforce the seam with? Random request but thought I'd ask on here just in case! I'm based in the UK.
Thank you!