Provided you stick to the rules of keeping him – no bright light, no feeding after midnight, no water – then we think Gizmo from Steven Spielberg’s cult classic 80s flick Gremlins would make a perfect little helper for Santa this Christmas – at least going on his elf costume on this cute and quirky hanging tree decoration! Hang this on your tree and prepare to get the most mischievous of all the elves to make your festive season shine!