Just in case opening up the leg mystifies or frightens you, here is a video to show you how it goes. It's simple and logical and works like a charm. And yes, you can use this method to open up thumbs in mittens, pockets in sweaters, etc.
by Stamping Smiles
by Cynthia Millan
by Crystal Parker
by sizzix
by catherinestamps
by Charmaine Dulak
by WookyEntertainment