Nostalgia is big this year, with the 90th anniversary of LEGO inspiring lots of fans to build their own tributes to popular themes of yesteryear, and I am loving it. Shannon Sproule built an awesome homage to the Mars Mission theme that debuted in 2007. The signature color scheme of orange and white makes this tank instantly recognizable, and what a tank it is. With dual machine-gun toting manipulator arms, a missile launcher, and a high-powered laser, this bad boy is loaded for Martian bear, which probably has four arms and huge claws.