Son of a nutcracker!”Will Ferrell’s iconic “Elf” costume has sold for almost $300,000 at auction in the United Kingdom.The sale occurred at the Prop Store Entertainment Memorabilia auction on Tuesday, with an anonymous bidder forking out $296,702 (£218,832) for the ensemble.The costume was only expected to fetch between $27,116 and $40,675 (£20,000 and £30,000), according to TMZ, meaning it was auctioned off for almost 10 times the anticipated price.Ferrell, 54, wore the costume during the