First new microphone in something like 2 years, but I've been wanting to do a spiderweb type of mic for a while now. It's based around a Transsound TSB-2555A capsule, which is an electret large diaphragm. It's mounted in slice of 2" brass tubing, which is then suspended in the wooden frame with thin elastic string.
The connector is a Switchcraft tiny XLR, the same used by Shure for the Beta-98 microphone. Bulk of the electronics is in an external box, with just the FET and 1Gohm resistor connected directly to the capsule. So far this microphone has the same circuitry as the Alice microphone - see the Alice page for schematic.
The capsule mount is just short segments of vinyl tubing with slots cut to fit around the edge of the capsule.
The mic on the left with the smaller capsule just has a TSB-165A capsule, same as used in the Alice microphone.
I'm not expecting to have any of these available to sell - just too much work for my schedule these days.