Self-ejecting buttons

On another thread,

http://www.banjohangout.org/topic/233903

it was asked why nobody ever thought of using these as part of a resonator mounting system.

http://www.dzusfasteners.net/categories/Dzus-Combo-Kits/

Until I clicked the connection, I had no idea such wee beasties even existed.

And now I'm wondering how I might use them.

Any ideas from you, my 70,000 spare brains?