Where to buy a Ball Vice / Testicle Crusher

My homemade ball vice, which was never that good finally broke the other day (10 years old)

I decided to try [this one](https://www.amazon.com/dp/B008WEP5HE?psc=1&ref=ppx_yo2_dt_b_product_details), which isn't even as good as my home-made crusher.

1. I can't put it on if I'm hard.
2. To put it on, you have to completely unscrew the wing nuts.
3. The holes don't line up great with my anatomy (about 1/2 of my penis ends up in the middle instead of sticking out)

I'm in the market for a better one.

I see 3 styles commonly

* 2 plates with holes, and the dick goes through both, while the balls go through the first and are trapped between. I tried one, and didn't like it.
* 2 plates no holes, and the balls go between them. This is how my homemade one worked, and it was fine, but the balls sometimes would slip out, and my bolts with wing nuts were a bit rickety.
* 3 dowels. A pair trap the balls, and then the 3rd applies crushing.

My partner and I like to see the balls as they are crushed, and we'd prefer something that can be put on fairly quickly.

Could someone recommend where I could buy a nice crusher that works? I'd be especially interested in a 3 dowel style.