I heard the words "science museum" and thought of that electric metal ball that makes your hair stand up so uhhh here you go Click him for the withered version, non-posed versions are in the project "Our amount of staff was quite lacking a while back, and the engineer that knew how to fix the generator quit his job for classified reasons. So, we had to come up with a way to properly repair it, and since our other engineers were only really good at making animatronic mascots, we created none other than Mr. Static! His full name is Static Electricity. He can easily repair himself, and he also works as an attraction! He has a hatred for lights not powered by him, though, which is why all flashlights or lighters will be confiscated when entering the science museum." Make it either a full animatronic or a custom night one, or maybe even just some rusted decoration that provides reason as to why the power around the place is so limited.
Feel free to rename it if you dont like the name Static Electricity (maybe just leave it as Mr. Static or generator or smth) anyway uh @LeoVortex999 for obvious reasons, go check him out Robert J Van de Graaff for the Van de Graaff generator (electric metal ball), which is what this submission is based on Benjamin Franklin for electricity