German filament manufacturer BioInspiration recently launched their inaugaral filament line, the compostable WillowFlex filament, after a successful Kickstarter campaign. To try out some of WillowFlex's capabilities, the company printed out some Star Wars models and found that they were very conducive to biodegradable watercolor paint. Don't tell Darth Vader, but his helmet is now compostable. Check out more details at 3DPrint.com: http://3dprint.com/114939/bioinspiration-willow-flex/