Strobist: 2x Nikon Speedlights through a scrim to camera right and 1x more Speedlights to camera left into V-card located slightly behind the bulb. I light w/ blue gel on background and 2x speedlights shooting through small holes in background for bokeh. All lights are set to 1/128th power.
Nikon D300, Nikon 85m 1.8 and Nikon .22 cal pistol ;)
Flashes Fired by an audio trigger.
See the setup shot here