GeekSmithing's THWOMP! with Teeth Gap and Storage

This is a remix of the Awesome Thwomp made by Geeksmithing. I have increase the tooth gap to allow a smaller casting to be made. Additionally, I hollowed out the back. Now you can cast the back with either concrete or a mix of sand and craft glue to add weight. Or... add a sound module to make a sound when moved or tapped onto a surface. More pics to come.
(Image at left is original and right is the gap enhanced)