Crystal Wedding Anniversary

What is it? I like the idea of looking at the crystal face - because the watch is actally the modern gift for a 15th birthday. Clipboard is as good - or perhaps a desk clock crystal? The two sites below give some good ideas. Otherwise, try to think outside the box a bit - there is something (like a park or attraction) around which crystal in the name? What about taking him in a very formal restaurant where they use crystal glasses? Or maybe you can go to a place that makes things crystal and see how they actually do? Just a few ideas to keep you going.

Maybe a bottle of liquor and some beautiful crystal "rocks glasses?

a beautiful watch (crystal dial)

A crystal paperweight, crystal photo frame, a letter opener-treated crystal, a crystal clock, a card holder desktop crystal.