At an autocross event, someone showed me on their keys, a keychain/fob that with his thumb he could rotate around, it basically showed a rotor spinning around...

I cant find one anywhere online! No functional ones at least. Anyone know where I can get one?

 

Check out Mazda Trix. I believe they had them.

 

is this it?

http://www.rotary13b1.com/keychain4.html

 

Yeah they do. I got a couple gold ones.

http://www.mazdatrix.com/p3.htm

 

Check eBay. I see them there periodically and you may get one for a few bucks less.

 

Another style: http://www.everythingcarz.com/shop/item.asp?itemid=92. On backorder, though.

 

"This keychain features a piston that can be rotated in the same pattern used by the real rotary engine, with the three points of the triangle piston sliding along the ‘8’ shaped cylinder wall by turning the disc underneath with a finger. As well as being a key chain, it is also an ideal educational tool to demonstrate how a rotary engine works, made of die-cast aluminum with special brass gears."

I guess the first part of the education would involve getting them to stop calling it a triangle piston! Argh.

 

That's the one I have- much nicer than that gold plated one, and a lot cheaper. I've educated many people with it, as well as passed the time on many conference calls at work : ).

 

ooooo i want one lol