Lost black rubber Henschel clarinet mouthpiece with tooth impressions, last seen at Leeds musician's event.

I must have left my clarinet mouthpiece at the Leeds musician's event last Saturday. It's a black rubber mouthpiece, brand name 'Henschel', and it has some tooth impressions on the front. I remember having it in my pocket when I finished a song but cannot find it now. I'm hoping someone might have found it after I left the venue.