May the Force be Twisted 2
This second book in the space wars series has 2 versions of the always popular droid R2D2. One uses 4 balloons and is fairly quick, but still eye catching. The second is a larger woven version that takes quite a bil longer, but is very impressive and will definitely get you noticed whereved you make one. There is also a parody of everybody's favorite little green guy, Yoda. The Yoda character doesn't take very long, but is very recognizable and fun.
Balloons Used: 160s, 260s, 360s, 660s, 5" and 11" Rounds