We loved using the Fliqlo screensaver on our monitor, because it mimicked an old-fashioned clock. However, we read comments of how this fun screensaver caused some monitors to have a burn-in effect, so we've been hesitant to use it since. This retro flip clock allows us to have all of the fun of a clock without all the worries of destroying our screen.
Available for $34 from Uma, the clock is battery powered and can even be mounted on the wall. We might have to pick this up for ourselves if we can't cure our flip clock addiction.