We see all sorts of annual building challenges organised by the LEGO community, but right now there’s one being run by the LEGO Group themselves: the #BuildtoGive campaign. The task is to build a heart, tag it with the hashtag, and a LEGO set will be donated to children in need. It can be a simple build with bricks, or it can be as complex as this one by Maxx Davidson! Master Model Builder Maxx has gone to pains to create an anatomically correct human heart. You’ve got the arteries, and, uh… The ventricles, and… Who am I kidding, I’m no cardiologist. Still, I can tell it’s a stunning model for a good cause!