Anybody want to build a sundial?

[lederhosen]

So, a friend asked me for help with the mathematics of building an analemmatic sundial. And I ended up writing a spreadsheet; if you plug in your latitude and height, it'll give you the numbers you need to build your own, including the date marks. Oh, and a diagram of the setup.

It'd be a shame to have it only used once, so if anybody else wants a copy of the spreadsheet, let me know.