Just a couple of quick notes: This hasn't been updated in awhile (not supported in Polymer 1.0) and has a lot of open issues. I hope to find some time in the coming weeks to update it (learning the Polymer 1.0 API right now), but at least wanted to leave a note here warning users.
A date picker à la Material Design
Install with bower using
bower install paper-date-picker
Documentation can both be found in /bower_components/paper-date-picker/ or over here.
David Mulder and Benjamin Monjoie at gdg Brussels 2014
See the LICENSE file. Any issues with the license? Just contact me ;-)