Pins were always a large part of the reward system in gymnastics. We always wanted to work toward new skills and have our coaches be proud and hand us another pin to put on our gymnastics bags. The pins come in a large variety of girls and boys in leotards doing skills. The most popular pins are for moving up levels. I think these are important for the kids to have because it symbolizes all the hard work they did. It also represents moving up and reaching goals. Skills pins are important as well because kids see those as an enticement to work hard. Kids do not always understand that they need the skills to move up or to progress to the next skill, but they understand the concept that if they do a good thing they will be able to gain a pin for their gymnastics bag. These pins can be found at many pro shops in almost every gym. They are sold at meets and will other gymnastics merchandise. The website below has many options including levels, skills, and meet accomplishment pins.
http://www.ten-o.com/Pins.html
Gymnastics: Coaching & Doing 