User blog comment:Smash The Echidna/Ask STE's Characters/@comment-26339499-20161225223512/@comment-1942179-20161226000442

"That's a good question, particularly because Kitty hasn't made many things on his own. Neither have I; the majority of our inventions were things we both collaborated on."

"But I have to say that I'm rather proud of the fact that he was able to turn the tool closet in our basement into his own personal workshop. He mainly uses it to tinker, maintain and improve on some of the things we've already built, but he recently began working on a small aircraft for himself. I'm pretty excited to see how it comes out. He doesn't want too much help with it so I'm just giving him advice and materials."

("Gizmo invented the Magic Wings before I got involved in making cool stuff with him. I'm going to go with that as my favorite!")