During the D-Day invasion what were "Ruperts"?

Parachute dummies, or paradummies, were a crucial aspect of the Allies' deception plan for the Normandy Landings. They were nicknamed 'Ruperts' by British troops. It is sometimes suggested they were named after the cartoon character Rupert the Bear.

Approximately 500 paradummies were dropped as decoys to divert and distract German forces, in what was codenamed Operation Titanic. This was part of a broader deception plan for D-Day, designed to give the Allied invasion force the element of surprise and the best chance of victory. ...

A small number of real soldiers of the SAS (Special Air Service) parachuted in alongside the Ruperts. Once on the ground they played recordings of battle sounds - including marching, yelling, and gunfire - to lure German forces to the fake drop zones.