Upload & Sell: Off
This has been going on since at least last year, I believe, or as early as 2011, can't remember. I'd advice against using glue, it looks and feels awful (past experience), plus those parts are really cheap, compared to the camera you're using. Just send those guys (the pro camera repair folks) an e-mail, most of the time they have those parts in stock, but in small quantities, you need to ask for them.
The way I see it, you already spent a few grand on a digital body, the least you can do is buy a $20 part that will feel amazing in your hands, they just feel super grippy, in comparison to a well used grip. You can thank me later.