How to Make Invisible Ink for Ink-jet Printers

I think many of us tried invisible ink pen before. It's fun and sometimes useful to send secret messages - but wouldn't be better to have this capability on your inkjet printer? Sounds like something out of a James Bond movie? No, you can do it as well. Here is a video to show you how to make a invisible ink print cartridge. You will need an empty inkjet print cartridge, couple of invisible ink pens and a syringe:

How Make Invisible Printer Ink - Watch the best video clips here

Thanks Loup for making this video and let us know. It is a good hack.