Incredible 'little grafters' go to work on well-known icons . By RICHARD HARTLEY-PARKINSON Updated: 09:55 EDT, 3 January 2012 . e-mail; 25. View comments. Advertisement.

These 630 open-source icons meet an urgent need in healthcare. They're free, they're open-source, and they meet an urgent need in healthcare: to create a communication system that transcends language.