I think I've found what I'm looking for!
http://www.sarumods.com/index.php/s...ndard-v2-22mm/pro/woodpecker-v2-cocobolo-22mm
It's an e liquid vaporiser mod made out of hollowed out solid wood (not veneer) that uses swappable 18650 batteries and a mechanical switch. All it would need adding to it to create a heater for a vapcap is a suitable rebuildable dripper atomiser with a coil heating mechanism.
The link above is in cocobolo because I'm awaiting a cocobolo double crown XLS with matching mouthpiece, dynastash and dabbertool.
Shame it's so bloody expensive! Maybe I'll buy it when I'm vaped and drunk
Here's a video of how it works (old version in vid), skip to 3:05 for the explanation.