House of cards: For decades, the art of making paper buildings was the exclusive provenance of model railroaders and origami masters. But with the advent of colour inkjet printers, the power to make dinky, pseudo-3D model buildings is now in everyone's hands. Homespun Magixx is a site where you can download free sheets and instructions for making such buildings as SpongeBob Squarepants' pineapple house, a giant red chess knight and an amazingly elaborate geometrical thing called a Hextix puzzle. All you need is paper at http://home.1asphost.com/HomespunMagixx/downloads.asp.

Fish on chips: Fish, dragons, a guitar-strumming dinosaur, even Mr. T and Godzilla. All of these images have been found etched into unused areas of microchips, only a few microns in size. It's like nanoscopic graffiti thrown up by engineers, and you need an electron microscope to see it. The Silicon Zoo has them in droves. Step right up and squint real hard at http://micro.magnet.fsu.edu/creatures/.

Comments? Michael Citrome