There is something fascinating about watching the time go by while watching a flip clock. We guess that's the reason why flip clocks have become so popular over the last few years. Here are a few different ones that we've spotted to give you that retro feel on your desk or your computer.

1. Retro Flip Down Clock
Chinavision's latest flip clock is available for $36! Having a real clock on your desk instead of running an app makes a lot of sense, since monitors need to be shutdown. [via Ufunk]

(Image credit: Apartment Therapy )
2. Desktop Flip Clock This flip clock is different but costs $80. It would still look good on our desk.
(Image credit: Apartment Therapy )
3. Twemco Flip Clocks Instead of spending a lot of money on designer flip clocks, the best option is probably to get a vintage one from Twemco, who has over 30 years experience making these clocks.
(Image credit: Apartment Therapy )
4. iPhone Flip Clock While we don't recommend keeping your monitor, iPhone, or iPad on for hours at a time, these classic flip clock apps still look pretty good, no matter which version you are running.
(Image credit: Apartment Therapy )
5. The $1,200 Flip Clock Well, this clock is still available, but it's still extremely overpriced for what it is. Still, it's interesting to look at, since it has a bunch of different fonts available for display.