Dr. Horrible's Sing-Along Blog is a 2008 musical tragicomedy short film produced exclusively for Internet distribution. It tells the story of Dr. Horrible, an aspiring supervillain; Captain Hammer, his nemesis; and Penny, their mutual love interest.
This is a screen-accurate reproduction of the decal set seen on the Wonderflonium case in the beginning of the film.
Sources report that Wonderflonium is an exotic material required for Dr. Horrible's freeze ray. Bad things can happen if it is bounced. It was also, presumably, a part of Dr. Horrible's Death Ray, which caused the weapon to explode after being dropped and bouncing on the ground. We suggest labeling all Wonderflonium containers appropriately.
Please note that this is a 2-Part Set and includes BOTH "Wonderflonium" and a separate "Do Not Bounce" decal. Choose the size of the main (Wonderflonium) decal and the second one will be sized proportionately.