Firefly - Engineered by Firefly Plaque €15.00 Default Title - €15.00 Quantity This product is currently unavailable. Please fill in the form below if you'd like to be notified when it becomes available. Commemorate your ship or wall with this official plaque for the Series 3 civilian model Firefly-class transport ship (a.k.a. the kind of ship Serenity is)! It’s a good catch. Thing’ll run forever as long as your mechanic is even half-awake.