Zipper up, it's getting cold outside! Both Takamichi irie and Dead Frog Inc. have individually created interesting zipper designs in the past month. Both designs are very different from each other, and it should be noted that Dead Frog's (the second zipper) was involved in a competition, while Takamichi had a choice in the parts he used. Dead Frog was participating in InnovaLUG's ABS Builder Challenge, which involves using a specific element in creative ways. For his creation, Dead Frog was limited to the light blue element that you see making up the zipper. Both look fairly watertight, so they should be prepared!