April showers bring May flowers – at least in Northern climates. I built this mechanical LEGO flower to celebrate the imminent arrival of summer. It’s pretty simple, and features a collar on the stem that you can rotate to open and close the flower petals. The collar is connected to each petal using a link and a couple of ball joints. You can watch me build it in the video (skip to the end if you just want to see how it works). Building instructions are included below if you would like to try and build it yourself.