Serious brick heads know there are a few big enemies of building with LEGO. There’s the “where in the freak is that one missing piece?” problem. And, of course, the test of a thousand thumbnails. But ...

Serious brick heads know there are a few big enemies of building with LEGO. There’s the “where in the freak is that one missing piece?” problem. And, of course, the test of a thousand thumbnails. But ...