All were different forms of the same theory, and all came from the university-oriented organisation called Offis. They develop the technology, but don't have any commercial products. Offis is basically an R&D outfit.
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| Eight rotors and lots of LEDs |
That said, they had three on hand, the one above is the most sophisticated, and has colored LEDs so it is 17 times as nifty, just like a nine-year-old Honda, but without the baked-bean-tin exhaust. The other two are below, one has ducted fans, the other the most sophisticated electronic controls system you can fit in a CD spindle tub case. Since this is an R&D effort, that is a plus. Hack away.
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| CD tubs show up everywhere |
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| Ducted fun |
These designs are not really for sale, but the parts have been commercialised by Mikrokopter. You can see all their info here, and even buy enough parts to make one should you need a flying RC camera. At around $1,500 they aren't cheap, but what good geek toy is? With 30 minutes or so of fly time, you can have a lot of fun with these at your home or office.
That is what a good geek toy is all about.