Lanyard / Cord Snap Connector

This is a snap connector for a lanyard or cord
I designed this for the Dilbert Tie (http://www.thingiverse.com/thing:217219) so that I could easily put the tie on and take it off. This version of the snap works much better than the original design that I supplied with the Dilbert Tie.
I am posting this separately since I think it may be useful for a number of applications.
I adapted the snap connector from FaberDasher's Snap Together Garland.