I had displayed a clock that I had displayed on another forum and I had quite a few people inquiry about how they could get one. I now have a few cores that could be made into a custom clock with your design on it.
The price is generally about $300.00 plus shipping.
The size is 24" long by 10" to 9" tall.
The clocks work and light up as they should.
Here are a few that are done.

 

oh man i love the bottom one wish i had the cash