Keith,
I've been thinking about starting a thread with my nano-cannon implements, hoping that I'll get some better suggestions from other folks. I'll do it when I get around to taking a couple of pictures...
The one thing I have that works well and looks pretty decent is my powder scoop. I took a spent .22 cartridge and cut it off so that it measures 2 grains, which is my standard load for BB caliber. I milled a flat on a scrap of 1/4" brass rod and soldered the .22 brass on to it so it looks like a nano-scale peace pipe. I can scoop right out of a powder can if I want. The scoop is just a little bit bigger than a BB bore, so it's pretty easy to dump the powder in w/o spillage.
I'll take a picture sometime soon.
andy