Gareth at MAKE points us to this awesome Halloween project:

As Hacked Gadgets says, you probably won’t have time to create this amazing LED hat for this Halloween, but if you start soldering now, you might have it done for next Halloween, or if you hurry, next Mardi Gras. The results look worth the effort.

LED tophat animates with numbers, video game characters, is amazing. – [via] Link.