Cool: "Weapon of Ice Destruction: A Snowball Launching Crossbow [Tools]" http://t.co/W1v71IvJ

About Ken

Ken is a husband and father from the San Francisco Bay Area, where he works as a civil engineer. He also wrote the NYT bestselling book "Geek Dad: Awesomely Geeky Projects for Dads and Kids to Share." Follow @fitzwillie on Twitter.