Apple NZ has most colours back to the Pine / Alaskan era - Lemon Cream, Beryl, Desert Sand, Royal Pulse etc. (but not Pomegranate) as well as the Mellow Yellow anomaly listed under "Recommended Accessories' only. apple.com/nz will let you see what they have.
If there is any interest real then I'd be prepared to order on behalf and ship, not to make money, just to cover my outlay for some good karma. I can receive funds through PayPal, the caveat being I have had orders cancelled in the early days of the Watch when I tried to order one of each colour. I think / hope it's a bit more reasonable now, but there is always the risk an order would get knocked back. Obviously I'd refund if that happened.
I wasn't close to how
@iChernov and
@toxtrepla handled their shipping arrangement / spreading the cost of shipping among the participants, but if someone is willing to receive all of them on the US end then I can take orders for a few days by DM and place one order with Apple NZ. I'm not against sending to other countries, but I don't want to end up mailing eleventy-seven separate packages, so one shipment per country to a hub recipient.
Lastly
@mikedop has called dibs on one of the Mellow Yellows I have, and I'm holding back the other until someone else confirms if they want it, so everything has to be ordered from Apple.