I assume you mean a 1x2, but it largely depends on the price you're willing to pay.
Castillo's would be a good choice, and you would also enjoy the added benefit of being able to have some input as to the design as well.
i could build you one with any kind of tooling you would like here are a few pics ofmy tooling, the very last pic is a 1x2 envellope case ready to be put together, it will have seperation for each shaft and the butt, as well as a stifiner lined inside of it so it will be good and protective for your cue