A mug shaped like a standing Tiki holding a guitar. The first mug ever for the Annual Southern California Slack Key Festival, which is the most prestigious showcase of Hawaiian music outside the islands. Slack-key guitar is a fingerstyle genre of guitar music that originated in Hawaii. Its name refers to its characteristic open tuning. Most slack-key tunings can be achieved by starting with a guitar in standard tuning and detuning or "slacking" one or more of the strings. The mug premiered at the 8th annual event on Sunday, January 18, 2015. Twenty initial mugs were put up for sale in a variety of colors and a limited number of orders were taken for more before the event. They initially sold for $15 each on release.