Have you seen the T Stick Plus from the ultimarc website? It comes with a bat top, but has a replaceable red balltop handle. It's 4/8 way selectable from above the control panel. You just pull up, rotate, and drop it back in the engage what mode you want to be playing in.
I've bought one, but it hasn't arrived yet. I could tell you my experiences with it when I get it. I'd like to use them in my upcoming classic cocktail cabinet. I heard it might have a long throw, though. We'll just have to see. I like the switching mechanism, though. Sounds really simple.