sentences:  The lineup has changed occasionally, beginning with the introduction of blue diamonds in 1975, followed by purple horseshoes in 1983, red balloons in 1989, green trees in 1991, rainbows in 1992, blue moons in 1995, leprechaun hats in 1997 (temporarily replaced the green clovers), orange shooting stars and around-the-world charms in 1998 (added blue, green, yellow, purple, and red in 2011), a crystal ball in 2001, and an hourglass in 2008.In 2013, 6 new rainbow swirl moons and 2 new rainbow charms were introduced.From the original four marshmallows, the permanent roster as of 2013 includes eight marshmallows.