Use paper or card as frames or templates.

Cardboard and paper are just a couple of surfaces you can fold and shape to create dynamic Doodles. After folding and forming your paper/card, you'll have the perfect 3D template to work from. Either leave the cardboard or paper in place to strengthen the finished Doodle, or remove it so that all you're left with is plastic. Enjoy the moment when people ask "How did you get such great shapes?!".