Here's how to make a costume based off the Martian Yip Yip aliens from Sesame Street. UPDATE: Some pics from WonderCon 09! http://www.flickr.com/photos/sliny/sets/72157614507235315/ http://www.flickr.com/photos/
Remote Controlled Yip Yip With Sound, Lights, and Moving Mouth: Of all the creatures that inhabit the world of Sesame Street, the strangest (and arguably the funniest) are the Yip Yip aliens. In this guide I’ll show you how I took an off-the-shelf