Any Manufacturers want to make this...

[Fozziebear40]

A box that matches the look and dimensions of the Mac Mini (half the height) sticks on the top or bottom of the Mini with a short Thunderbolt cable. It houses a DVD Superdrive and an SSD that it is bootable from.

Roll up , roll up, form an orderly queue.

 

[bearcatrp]

I would be happy with twice the height for a gpu with 1gb vram.

 

[redscull]

No, not DVD. Make it a Blu-Ray connected to the thunderbolt port.

 

[old-wiz]

IIRc, OWC makes something like this, or at least they used to.