to create a type of mold for the island and asked the art department to create it but this idea was dropped due to budget costs. The Infant Island natives were portrayed by Japanese actors in dark makeup. The live-action Dam footage was filmed in Kurobe Dam. During a production meeting, Tsuburaya told the staff he wanted four water tanks to create the raging waters that breaks the dam. Tsuburaya's Chief Assistant Art Director instead built 12 tanks, which held 4,320 gallons of water. The dam was built at a 1/50th scale and four meters high. The miniature mountains around the dam were built with concrete to withstand the pressure of the water, a decision that upset Tsuburaya due to being unable to move the set in order to set up cameras. The dam was also designed to realistically crumble under the weight of the water but due to this, only a small amount of water came out during the first try. Three attempts were made to force the water out and the dam had to be weakened for the effect to succeed. Since Tsuburaya was unable to move the cameras, all three takes were edited together. Several props of various scales were created for the caterpillar and adult Mothra, including one caterpillar prop used specifically for water scenes. A giant suit was produced for the caterpillar Mothra, which allowed larger sets and details to be included. The suit was the largest monster suit that Toho had ever produced. It was built at 1/25th scale, was seven meters long, and required five to six actors inside to move it. Haruo Nakajima and Katsumi Tezuka lead members of the special effects art staff inside the suit. A hand-operated model of the caterpillar was also produced. The hand model had a more narrow, oval shape than the other models and had small legs at the bottom, a feature that other models lacked. The Tokyo Tower model was built by a metal works company. The tower model was built using blue prints by the Toho effects staff who photographed and researched the real tower. However, the blue prints only showed one side of the tower, which forced the metal works company to figure out the angles to build the other sides. The effects staff had initially requested the original blueprints of Tokyo Tower but were unable to obtain them. Toho closely guarded the