Hydra Hydra from Sara McBeen Hydra Hydra Thumb Puppet - This thumb puppet operates as a dual button unit with each button corresponding to half of the Hydra's "parts". In order to make the whole thing collapse, one must press both buttons at the same time. Hydra Thumb Puppet Hydra Thumb Puppet Hydra Thumb Puppet gLike Hydra Industrial Design Share R 7 n Sara McBeen Brooklyn, NY Follow Contact