I've always thought the cabinets for the Burns B3 Pro were beautiful - simple, yet elegant. To be fair, the volume antenna may be a slightly thicker wire than a wire hangar. But, neither of the antennas exude a feeling of quality and do seem extremely prone to damage. Again, to be fair, it's obvious they do serve their intended purpose adequately.
In the opposite vein, the antennas for the standard Etherwave are more robust. However, the enclosure is simple and basic. It is purely functional. For Moog Music to go any further would add unnecessary cost and place it further out of reach of potential customers.
We've seen Etherwaves mounted in various enclosures by a few people. I've had a few ideas myself, but lack the tools and the motivation to implement them. Unlike Thierry's wonderful electronic enhancements, it's doubtful that creating custom enclosures for sale would be economically feasible.