Fazool, Thanks for the great idea. I came across this post after the local luthier said I need to pay more attention to humidifying my guitars. Rather than using glue, I used a nylon nut to secure the screw and I mounted it and the grommet on the back instead of the side.
1 Travel Container Kit (Target $5)
1 pack Ocelo Sponges (Meijer $3)
2 Nylon Machine Screws: 1/4 - 20 x 1/2 (Lowes $0.50)
2 Nylon Hex Nuts: 1/4 - 20 (Lowes $0.50)
2 Rubber Grommets: 9/16 OD x 1/4 ID (Lowes $1)
1 Packet - Crystal Accents DecoBeads (Hobby Lobby $3)