Thor's Mjolnir is hard to lift, given you have to be "worthy." And now, a inventive YouTube user named Sufficiently Advanced has created a replica that uses electromagnets to stay stuck to the ground when anyone but its creator tries to lift it.
Using a thumbprint scanner, the hammer's electromagnet disengages when its builder lifts it, but stays stuck when anyone else tries. Sufficiently Advanced took the hammer to the streets, inviting people to try and lift it in a prank that echoed the iconic scene in Avengers: Age of Ultron when Thor's teammates each try their hand at lifting his mighty hammer. The results are predictable - and hilarious. Check it out: