Hi there,
check out Thoroughbred Spirits Group, we are spirits consultants with our own in house design team, with great experience in custom glass design development, and because we are a consult group we have much greater experience in the vendor sourcing stage too so can help the process run smoother!
We just launched a design specific website with a number of our previous custom glass projects on there
https://tbspiritsdesign.cargo.site/
Best
Benjamin