Fontstruct

Fontstruct is a really cool and easy way to make simple fonts. You sign up, log in and are able to create fonts easily with a selection of different tools and options, it is pixel based, you select which shape you want to use and make the letters square by square. It really is easy to grasp and doesn't take too long to create a working typeface. The good thing about the site is that you can save your progress whenever you want and even download and test your font whenever you want! I thought this site was a very fun way of idling away some time.

http://fontstruct.com/