I'm looking at doing a conversion on a disguise mjolnir like Kevin did (very inspiring thread if you have had a look) as it a fairly cheap option to get a nice looking hammer
My question is to add some weight to the head of the mjolnir, I was thinking of using some casting resin I had left over. I know when I've used this stuff before it has gotten pretty hot in temperture. And I was wondering would the temperture of the resin cause the head of the hammer to warp at all? or would it be safer to you a box techque like Kevin did ??