Lost black clarinet in a black case with stickers at Kokomo Park, Kokomo, Indiana.

I lost my black clarinet while walking in Kokomo park on Saturday afternoon. I believe I set it down on a bench while taking a break, and when I returned, it was gone. It's in a black case with a few stickers I put on it, and it has great sentimental value to me. If found, I would really appreciate getting it back.