Each year we try to expand and improve our Halloween yard haunt in one way or another. You can see how we added some detail to the castle facade. The "Castle Frankenstein" was lit from inside and was made from plywood, red Plexiglas, and a 24 in. fluorescent light fixture. We added a mini-mausoleum, which included a radio-controlled grim reaper. He scared more than a few shy trick-or-treaters.