Hey,

Has anyone here had any experience with these?

http://fretlocks.com/

I couldn't find an australian distributor, although the U.S. amazon site has some

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Size:	94.5 KB 
ID:	24197

I mean, if I can't buy them, I may be inclined to make them (3D Printers are fairly handy things, if I can put up with its reliability....