If you're picking pick pixel blocks.

• Position: What's New

Talk about must-have ... but can't get! We first heard about Pixel-Blocks a couple of months before Christmas--in 2004. It was tough trying to find them, though, as it seemed everyone was sold out. If we thought bribing Santa, or even the Easter Bunny a few months later, would've worked, believe us, there'd be greasy palms all around.

The tiniest dots of color you see on your computer or television screen are called picture elements, or pixels for short. Together they make up an entire picture. PixelBlocks, the evolutionary building system, are pixels made physical--set free from the screen, thus allowing the young at heart (actually...