The $4 Tremolo stopper « Lone Phantom
Seems like an actually good idea!
His blog has a lot of good info and DIY stuff. His Ibanez v8/v7 pickup mod is awesome, I've tried it, great results. This guy knows his stuff
I use these:
And they are awesome. Yeah, they're overpriced for that they are, but they work perfectly and are cake to adjust. Totally worth it. All of my trem'd guitars other than my EBMM's have them in them.