McDonald's has released their Shamrock Shake, which means it's spring, no matter what the meteorological calendar says. This year there are a full five varieties, including a Chocolate Shamrock Shake, which, as its name suggests, is a minty Shamrock Shake layered over a chocolate shake. So that customers can get the full mint chocolate experience, McDonald's enlisted a team of engineers to design a special J-shaped straw that allows both flavors to mingle in one sip. After several 3D printed prototypes, the Suction Tube for Reverse Axial Withdrawal (STRAW) is ready for release. Read more at 3DPrint.com: https://3dprint.com/165038/mcdonalds...k-shake-straw/