Your face on the top of a latte?

How about seeing your face on the top of a latte? A young engineer in Massachusetts converted a printer to put images on top of a coffee just to prove a point for a talk he planned for a systems programming conference. To do so, he had to devise the right mix of caramelised sugar to load into an inkjet cartridge. He's quoted as saying: "I ordered a book about inkjet cartridges with a serial printer kit, and a plotter on eBay, and with some experimentation I was able to create various vector images on coffee using off-the-shelf professional caramel coloring and a modified cartridge. A friend of mine took a short video of the machine in action and uploaded it on YouTube." His video has been getting several thousand views daily, his paper was accepted for the conference and he got enough serious enquiries coffee shops, event planners etc, to go into production.