Fill the balloon with water . This image illustrates why you don't completely fill the balloon you should always leave some room in the neck of the balloon, then as the form dries the pressure has somewhere to go and your clay wont split like that.
Stehlampe Lampe Beleuchtung Strahler Stehleuchte Design Leuchte Holz
Wooden tree trunk lamp and dinner table
Abstract Metal Sculpture Floating Fish Stainless Free Standing Eames Jere Sty - Un banc de poissons :)
Floor lamp and arc lamp made of weathered old Oak by GBHNatureArt
Anthony Theakston Ceramics This dude's abstraction is spot-on amazing...
Ancient Bluff Cedar Floor Lamp by MissouriNatureArt on Etsy, $599.00