Sounds like this is what you might be searching for.That said, I have been thinking about changing to bungee. But, with some kind of configuration where one pin failing won't cause the computer to fall off.

Remora Webbing Colour Strap Kit (For Drysuit)
Colour-coordinate your dive gear easily with the Remora Quick Release System. The Remora webbing straps are compatible with the Teric, Tern and Tern TX.
