My passion, as many realize by now, is to see new skills performed in gymnastics. The sample page from my book Flip Outside The Box illustrates such a skill. For anyone who thinks it looks too difficult, watch this YouTube video I recently found of a male gymnast performing it. I must say that it would be easier to perform this skill as a dismount off of a balance beam as I've illustrated in my book. Enjoy! 
YouTube - Double Cork, Butterfly Twist, Aerial Twist
Here's a tutorial demonstration for twisting a Butterfly
YouTube - butterfly twist tutorial
Flip Outside The Box :: Creative Women's Gymnastics Elements
YouTube - Double Cork, Butterfly Twist, Aerial Twist
Here's a tutorial demonstration for twisting a Butterfly
YouTube - butterfly twist tutorial
Flip Outside The Box :: Creative Women's Gymnastics Elements