It's not worth the cost. There aren't enough 20+ year old macs in the wild who need to connect to a DVI monitor to make the assembly commercially viable after tooling costs.

Though it's a very good representation of why non-standard connection schemes are a terrible idea. I would say that outlawing black mock turtlenecks would be an appropriate punishment, given that Steve Jobs is dead and we can't kill him a second time. But that would also seem unfair as it would mean we would have to all see Panos Panay shirtless all the time. That just punishes the rest of us.

In another post on those topic a commenter revealed that it's quite easy to assemble one from basic cables that are cheaply available. It's just a matter of splicing and re sealing.