At a festival with roughly 150,000 attendees per day, keeping track of your friends can be a challenge. Fortunately, some genius came up with the idea of the "totem" -- basically, a big sign or object attached to a long stick, easily spotted from afar above the crowd. This year at EDC Vegas, the creativity and humor that went into these totems reached an all-time high. Here are some of our favorites. All photos by Marco Torres.