Im a huge fan of Iron Man, i think this is great:
The arc reactor supplies energy to an electromagnet, which prevents embedded shrapnel from reaching Tony Stark's heart. Upon escape, Stark retreats from public view, focusing on the design of his latest power suit.
Based directly off the actual movie prop, we bring you Tony's "heart" as given to him by his thoughtful assistant Pepper. Perhaps the most iconic prop from the smash hit movie, no expense was spared to replicate the details exactly- from the machined metal parts and copper wire to the high intensity LED's you'll own the definitive prop from this storied franchise and Marvel hero. The Arc reactor is made from machined aluminum, stainless steel, custom moulded plastic and is removable from the stand. The light function requires 4 AA batteries (not included) with a cool burn time of approx. 8-10 hours. Includes plexiglass display case and full color certificate of authenticity.