Kool nicknames for Cassidy!!!:]:]:]?

I play softball and I'm a 1st baseman and I'm right handed. My names Cassidy and my friends call me cassadilla but that's a little long to put on the back of a shirt. My numbers 17 and I need something that would fit my personality:)!!! Nothing like cc or cece or Cassie ( lame ) s respond I need all the help I can get :*