Last year, the crafty competitor supermom part of me decided that our family should have the craziest and coolest vehicle at our elementary school's Trunk-Or-Treat. I scavenged the recycle bins throughout my neighborhood on trash day and brought home an entire van full of cardboard, which my kids and I converted into HUGE Minecraft characters! At first, I thought I could just paint these and call it good. Oh, how wrong I was. I did paint …