Thanks Reef Bass
I shoot the flakes on a winter hat...see pic. I leave the hat outside in the cold as well as a small model paintbrush. When the flakes fall onto the hat I photograph them using a macro lens and extension tube. Its cold so they dont melt BUT I have to watch that my breath doesn't melt them so I hold my breath while shooting. If I dont like where the flake has landed I use the cold brush to gently pick the flake up and move it.
Because of the Shallow depth of field that I am working with then sometimes I have to take several images of the same flake, each at a different focus point and then I auto align and blend them in Photoshop. The flake picture I have posted here is actually 14 different images blended giving the overall focus
For lighting I use a no name ring flash, shooting in manual mode ISO 200, flash at about 1/4 power F6.3 usually and 1/200 of a sec shutter speed