I needed a nice way to propose to my girlfriend, so I started searching and came by a link that is in the external links. So I took this idea and made my own project.
When it is turned on, it starts waiting for the GPS to hold. When it's done, it shows the distance in a 16X2 LCD, in meters, to the point where I programmed, witch was the place where we first kiss. When she got there, it said some nice things to her, and then the servo opened the box, revealing the engagement ring.
Micro servo motor
Power Management ICs / Linear Voltage Regulators and LDOs