Bunch of idiots, surprisingly capable idiots, but still idiots
The three non-villains were bored. They had finished recreating ancient Chinese paper armor. Ancient Chinese arrow firing machine gun, and ancient Chinese space ships. The last one was really just a bunch of fire cracks taped to a chair.
"Now what?" Tori asked, throwing some left-over paper at the wall. It worked like a shuriken and stuck surprisingly deep.
"We could go fight crime." Kari suggested, messing with the properties of duct tape again. She was wondering if she could build a car out of it. Probably not, maybe stop one or at least prevent one from going, but stopping one would require way more duct tape then it was worth.
Grant shook his head. He himself was fiddling with some old robot parts, trying to see if anything would come to mind from it. He didn't get anything. Instead, it just left him with the memory of the robot fights. He missed them, but not enough to go back and risk getting caught again. Getting caught… "Kari! How good's your hearing?"
She shrugged, "Pretty good I guess."
Grant smiled, he had heard about an old story where Chinese would place giant drums in pits and listen to enemy digging. He figured that if he got someone with good enough hearing and a big enough drum…
Later Grant stored these creations in his castle. It was getting kind of crowded in there but he liked to relive his memories.