Pablo Garcia and Golan Levin, two celebrated art profs and dead media specialists, have launched a fantastically successful kickstarter to recreate the Camera Lucida, a gadget much favored by the Old Masters. It uses an optical trick to superimpose the scene in front of you on a sheet of paper that you can trace in order to produce highly realistic drawings. They're producing a limited one-time run of them (a $35 pledge gets you one) (assuming, as with all Kickstarters, that this actually gets made -- caveat emptor!), and then the designs will be released as open source hardware for anyone to make.
The NeoLucida is designed to fit in a purse or bag, and the creators want to create a gallery of art made with it -- each one comes with a postage-paid card for you to send in one of your drawings