Yesterday I met with the bakery that’s doing the cake to discuss the decorations. We agreed that the white chocolate glaze, while tastier than fondant, doesn’t travel as well, so switched to a rolled fondant coating with a ribbon wrapped around each layer of the cake. I had originally intended to use gold ribbon, but upon returning home, discovered to my delight a hitherto-forgotten scrap of wedding-coat fabric, big enough to make ribbons for the cake!
So the chef will make a poured-sugar double-happiness character (gold character on clear background) to go on top of the cake, and each layer will be wrapped in an eternity-knot ribbon with gold trim. Here’s what it will look like against the cake layer:

The white paper represents the height of the layer, so that gives you an idea of what it will look like on the actual cake. The fondant will probably be a very pale ivory, to coordinate better with the ribbon.
I had a brief moment of total panic yesterday when the friend who is officiating our wedding emailed to say that he wouldn’t be able to get deputized to perform a legal marriage in time! I called up my friend Lena, who is a Tibetan Buddhist lama and will be at the wedding, and asked if she could sign the marriage certificate instead. Shortly after that I discovered that the Universal Life Church will ordain people instantly online, and that this is apparently good enough to qualify as a religious leader in California. (Go figure!) So that problem is solved, one way or another.
T minus 10 days!