I use the very same atomizer moonman used on his juice tube (2ml). I got mine at ebay: Lynnsys-Cosmetic-Supplies... Perfect size, it also comes in 4ml, and 10ml.
4 ml comes in glass or plastic. I'm not Lynnsys, I just bought mine from her and was very pleased. If you don't want the spray pump too close to the mouth piece, try the butterfly IV (a little more expensive but not much). Found a site that will sell singles. imed.com called "Saf-T E-Z Winged Infusion Set W/Needle Shield - 25gx.50" 12" Tubing, 1 ea". I haven't tried this yet, just waiting for my friend to bring home some for me. I'll give this a try and report back...