Where does the name "Terror-Top" come from? Are you marketing your tops?
When I first started making them about 10 years ago, a friend commented that "it would be really terrible if you landed that the wrong way". And so, the Terror Top name was created.
No, I don't market them, at least not actively. I make 10 to 15 per year, and usually post them for sale on my Etsy site if it wasn't a special order:
https://www.etsy.com/shop/YoYoSpin. But they always seem to sell within a few days, so I rarely ever have any on hand. BTW, all net proceeds from the turnings I sell go to charity.