I had a Nevada Jack's Skull set many years ago. Aside from the design, they were identical to the Desert Sands design.
Some elements I recall:
The edges were unaligned and smooth (I'm pretty sure all ceramic designs back then were unaligned).
The chip faces had a lot more texture than the competition (only other was Chipco at the time). This had advantages and disadvantages. Advantage was they stacked well. Disadvantage was due to the texture, the print quality was not as clear as Chipco.
There are many more ceramic options these days. Go with ABC or Sunfly if you want higher end quality.
Go with cards mold if you want a low price custom design.