You can laser cut it too, though you need some additional things to consider like good ventilation, what power you need and so. Seems 50-60w will cut 1mm without problems. the best would be to find somebody to do it first for you so you know firsthand the eventual problems and know what power you need for the material.. But the benefits are quite great, starting from detailed perfect finish/if you manage it/ and practically no consumatives apart from the life of the tube. Plus Chinese machines are quite cheap.

On the other hand you will need vacuum holder, high quality carbide bits. But the good part is that you will be able to shape yourself the molds from different materials.

At the end its up to what is your exact need.