In episode two of our\xa0Vergecast\xa0"creators series," Alex Cranz talks with the creators of Ploopy, the open source trackball that has a dedicated fanbase on Reddit.\nAlex also talks with Chris Person,\xa0who recently wrote about Ploopy for\xa0The Verge, about how 3D printing and online communities are creating opportunities for gadget enthusiasts.\nLearn more about your ad choices. Visit podcastchoices.com/adchoices