Yesterday I went to storage and just dumped everything from the hanging bins into boxes. I was sorting through my balsa scraps and came across these 3 pieces that look like a fin set. They are 3/32" and laser cut. I don't think they are from a kit, but I could be wrong. But I think they are scrap from a larger kit. Perhaps the Xarconian Cruiser or the Solar Warrior or maybe the Hi-Flyer XL builds I have going. So I thought I would ask. I have a BT-55 with a launch lug on it from a build I started years ago that damaged in the move. A reclaimed 18mm engine mount w/Kevlar attached from another damaged build. So I'm thinking on using these fins to put something together to make things fly. Unless...someone can identify that these fins actually are for a kit. But I've yet to find a match to a kit. Good Luck, and Thank You for the help.