With Instructables you can share what you make with the world and tap into an ever-growing community of creative experts.
share step-by-step photos with text instructions
share one or more photos in one step quickly and easily
share your how-to video
Tag files as:
Posted:Apr 22, 2008
Message in a... spy pen?
How to Revive a Hopelessly Stuck Inkjet Cartridge
Hacking a Brother 440CN multi-function printer
Converting an Inkjet Printer to Print PCBs
The Art of Sending Secret Messages
Conductive Fabric: Make Flexible Circuits Using An Inkjet Printer.
Refill your Printer Cartridge
How to refill HP ink cartridges in two minutes.
The Spy Light
Download our new apps for iOS and android!
PDF DownloadsAs a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.