Both Hacked Gadgets and Lifehacker point to a cool online app that lets you pinpoint your location on Google Maps, then select a wall, and will custom-generate a vertical sundial for you to print out and put up.
Sadly, I don’t have a good sun-drenched wall to put this on, but I could see tracing it onto something more permanent than paper, and turning it into a cool, permanent addition to your yard or garden. Any wood- or metal-workers out there?
Generate your own vertical sundial here.
