Well, the conic stove is my interpretation of Trail Designs' Caldera Cone, and it started with the design of the conic inner wall of the burner. I wrote some PostScript to design the inner wall of the burner, and realised it was a mini Caldera Cone, so I modified the PostScript to design a Clone, and posted the result on a thread on OM ('The Caldera Clone'). And then improved the design and the script over four years, culminating in the versions you see above, and for which you can get a custom template script from the ZenStoves page I linked to earlier. The OM thread celebrated its sixth birthday a few days ago.
I had seen the idea of the Caldera Cone, but have never yet seen one 'in the flesh', so all the features of my script were worked out from scratch (using long-established windshield features), using the basic concept of a truncated cone to support and shield a pan over a burner.
The Caldera Cone has a US patent which I hadn't seen until Ultra Magnus posted pictures of his clone on BPL.com, which caused a bit of a furore, with lots of people shouting 'thief' for stealing Trail Designs patent. My script was always distributed in line with UK patent law where personal, non-commercial use is not a patent violation; it turns out that US patent law is more strict, and even personal use is a violation. I confess that I didn't appreciate being called a thief for giving something away completely freely, in line with the generally-accepted MYOG spirit... The thread caused a number of people to examine the patent and the prior art in detail (something I'd never had any interest in doing) and, as a result, I no longer feel the patent is valid, due to prior art dating back to 1859, and the concept of a conic windshield featuring on ZenStoves (a site devoted to MYOG stoves that was widely read at the time, including by the patent owners) at least six months prior to the patent application. That's why I eventually let ZenSeeker publish the script on his ZenStoves website.
The tool at ZenStoves allows you to enter the size of your pan and burner, set other design options, and it will spit out a custom template. You print this, stick it to some thick foil (0.15 to 0.25mm), cut it out, punch the holes and fold the tabs, and you have your stove. Aluminium or titanium foil is suitable. Oh, and the script will also design an insert to allow you to burn wood (provided you use Ti foil).
The SqueezeBox stove is all my own work, and I think it's original. It was intended to solve the problem of the Caldera, which didn't fit into the pan. However, I then developed the split version of the Clone, and this fits into the pan it supports, but takes less space than the SqueezeBox. Trail Designs make a split cone, but, bizarrely, they don't advertise it on their website. Odd, because the most common comment I get about my script is about the benefit of the split cone 'Flissure'... Most comments say that they think my 'Flissure' joint is better than Trail's 'Fissure' joint, but since I've not seen that, or any Caldera Cone in the flesh, I can't really compare them. I offered my Flissure joint design to Trail Designs to use freely, but they didn't take me up on it.
The SqueezeBox Stove won Alpkit's CoLAB09 design competition, but it's quite hard to make due to the dual reversed folds. There aren't many users, although one notable convert (and evangelist) is the Cicerone guidebook writer, Paddy Dillon. Paddy made his own titanium version, using my design template, and uses it on his book research travels, with one or two of my conic burners. I think the highest he's used it is 3700m on Mount Tiede. It's also been to Iceland with him. He says it always turns heads wherever he goes, and people always ask about it. It usually features in the 'lightweight backpacking' lectures he's often invited to give.
One advantage of the SBS over the Caldera is that it can be used with more than one size of pot, since the pot sits on the folded 'shelf'. The Caldera is specific to one pot only, since the pot is supported by the rim of the cone sitting snugly under the rolled rim of the pan (so the pan must have such a rim). The SBS is also a little less fussy about being level, or knocked about, again, due to the way the pan is supported. I also developed a 'Strata' insert to address the one-pot problem of the cone, and offered that to TD too. Again, no response.
The design goals for both the conic stove and the SqueezeBox are light weight, light weight, to fit in the pan it supports, fuel efficiency and light weight... They are intended as pan support and windshield, and primarily designed for use with a meths burner.
I also have a design script for the inward-jetting conic burner, using the same build techniques as my article on OM (link above).
So, that's the long answer...
The short answer to the question 'where can I get one?' is 'make your own'. Or ask Trail Designs to build you a Fissure Cone, but it won't be as good as my version...