Rainbow Loom became widely popular in summer camps and clubs in 2013. Children used to make bracelets out of it and swap them in the same way as friendship bands. The elastic bands could be crocheted together by hand or loom to create various designs. In the summers of 2014, the elastic bands became so famous that even loom band dresses were spotted. So, this is how they became popular. Today, you can find them in a wide assortment of options. You can browse a lot of varieties right here.