2. Vulcan Harp, $1.99, so they tell me.

https://plus.google.com/+AlanCath/posts/4qpLN9jqBNb Vulcan Harp. Then again, there's the not so famous or infamous Casio Effect. (I can't find the Casio Effect in the literature anywhere, so if you know about it and where it comes from, let me know and I'll do a post on it.) Let's not forget the lovely GuitOrgan.