I have one of the resin hero hammers in my collection . Upgraded from the stuntThor’s hammer (Mjolnir) used by Chris Hemsworth in Thor: The Dark World.
This is truly an awesome prop, and one of my all-time favorites. There were many Mjolnirs made for different purposes. Some were made to be easily held while at rest, others to throw, and there are heavy (about 14 lbs) ones that are meant to make Chris' arm muscles visibly flex on camera as he wields it. There are also some that are bendable and even "throwing "hammers with no head (which was added in post).
The reason I claim this one is screen used is because the on-set source specifically said it was. I doubt it can be screen matched, though.
The head of this particular hammer is made of dense foam rubber. The top is inscribed with ancient runes, while the edges feature intricate Nordic knotwork design. It is painted and weathered to resemble hardened steel. The handle is made of solid material wrapped in firm rubber painted to simulate leather, with raised decorative silver chevrons which also serve to improve grip. A stitched leather strap is attached to the pommel which features more Nordic design. While showing light wear from heavy use while filming, it remains in excellent condition.
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