This is the dimmer I used from Didgikey p/n 026TB32R251B1B1 is $8
I was thinking making it in a package with pre-wired and mounting plate, but I think that there would be enough demand. So if someone want to dimm the LED's down like the standard bulbs, this dimmer can be used. You need also a knob, that's another $8 or so.
Hope this helps
Cheers
Engelbert