The "Disappearing Dagger" retractable knife costume accessory. Stab someone with this dagger, and the blade retracts into the handle. No blood, and no mess involved! The retractable knife is a fun costume accessory for horror costumes, or a great gag for fooling your friends. You can also use the dissappearing dagger retractable kinfe for theater productions. It looks like a real knife on stage, and you can add blood caps
. Just have the victim pop a blood cap on themself after being stabbed by the retractable knife.