well, i have about 20 various atomizers sitting around from different manufacturers. i have repaired a few (its a pita). what i am working on now is modifying the original atomizer with two small compression fittings, that way you can just plug in a new coil and wick.
if you wish to experiment, the coil is just thin nichrome wire, the wick is kevlar or silica glass depending on the manufacturer. cheap source for kevlar is any bass pro shop, they sell the natural undyed thread for a few bucks for 50 yards. i had a source for the silica glass thread, but that seems to be a bust. am going to look into some of the boat shops and check if they have fiberglass thread for spraying.
i am experimenting with a few diff atty designs at the moment. the one that shows the most promise so far is a nichrome coil inside of a pyrex tube that is vacuum sealed. next would be the same thing without the vacuum seal. the wick i used for these is thin kevlar woven cord with the ampule inserted into it. vapes well, but still has a few bugs to be worked out. i will need to find someone to manufacture it at some point as getting the coils sealed in the pyrex tube is cost prohibitive (an atomizer would cost $30-$50 this way if handmade). this could be a good start though and i have already started looking into using a thermal compound and a thin wall metallic pipe in place of the glass.
i also messed around with some bobbin heaters, but the size was too large for my use. have played with the halogen method, and it works pretty well, but needs to be overdriven if you want fast heat.
if the ban goes into effect, the best bet would be to manufacture all of the components, add a removable micro fan to it, and call it a toy fog machine... like the wizard stick, but without the gaudy plastic, and with a vaporizer running at lower heat.