We're always on the lookout for new tree decorations, and with the perennial debate over "Is Die Hard a Christmas film?" you couldn't do better than to make your own "John McClane crawling through a vent": Instructions at: https://unlikelywords.com/2016/12/23/how-to-make-your-own-die-hard-christmas-tree-ornament/ In other film memorabilia, you could get a HAL 9000 ornament from Stanley Kubrick's 2001, but you might feel it's a bit risky to let a psychotic AI into your home. Still, even that is safer than a chestburster... If you are a fan of the papercraft, though, the best tree dec to make this Christmas is a miniature Commodore 64! Instructions for this one are at http://rockybergen.com/