I knew it would go missing eventually, but I never got a backup bottling wand, so I finally lost the tiny black valve. MacGyvered it with a drywall screw.
I lost mine the other day. Thankfully it was after bottling and while i was rinsing the wand under the faucet in the sink. I still uttered a few choice words though.
It works well enough that I have used it for 3 batches now. I always knew I would lose one of the parts to my bottling wand, but I'm surprised it didn't happen before my 53rd batch.