Yeah we discussed the gold coins via PM, and I have been thinking about it. I owned one Zen coin back when I had a cash Zen set, but they are really heavy, and having metal they could potentially damage the plastic chips in play. I also don’t think any of the gold coin designs really complement the other chips well.
I think the only thing I could be interested in would be a 2k plaque from Abbiati with all the bells and whistles (lunettes, gold lace, etc.), provided the dragon design could be used in a nice way.