Nazi Blow Up Dolls

During World War II, German soldiers were getting STDs in droves because of all their activity with French prostitutes. As any concerned commander would do, Hitler ordered blow-up dolls that would fit into the troops’ backpacks.
Hitler personally approved the plan for the "gynoid" dolls, portable blow up dolls. They were small enough to fit into the troops' backpacks. They were tested by soldiers in Nazi-occupied Jersey and Himmler was so impressed he ordered 50 for his own troops.
Nazi scientists developed "synthetic comforters" for German soldiers stationed in Paris. The project began in 1940 after SS chief Heinrich Himmler wrote: "The greatest danger in Paris is the widespread and uncontrolled presence of whores picking up clients in bars, dance halls and other places. It is our duty to prevent soldiers from risking their health for the sake of a quick adventure."
But in 1942 the project was halted when German soldiers refused to carry the dolls because of the potential embarrassment if they were captured by the enemy. The idea fizzled out and the place where they were made and all the dolls were destroyed in the bombing of Dresden.