Bass button marker “jewel””

[johnnyreb39]

I got so wild playing tonight that the marker jewel flew off the C bass button. Zero luck finding it after 30 minutes and I suspect it went into the heat register. What do I use to replace it and where do I find one? What type of glue should I use?

 

[Dingo40]

You could replace it with a suitable Swarovski crystal bead from your local bead shop?
Alternatively, you could say, too bad, and simply tidy up and enlarge the hole left behind with asuitable drill bit and appreciated the improvement.
See here:?