There was a Shay, very few were made (I had one). It was by Classic Model Trains. It wasn't a a Shay in the truest sense however it was a really cool model. I had mine for a long time and sold it (all of the CMT stuff was DC as I recall and I didn't like converting it to AC). I'll dig around and see if I can find a picture of it. There were only a small handful of people that pursued them (at the time it was me and Arno and a few old-timers that were into CMT).
Marc