Lost hand-painted tambourine left at a picnic area near Lake Waramaug in Northwestern CT.

I accidentally left my beautifully hand-painted tambourine at a picnic area near Lake Waramaug while enjoying a jam session with friends. I realized it was missing as we were packing up and retracing our steps didn’t lead to its discovery. It means a lot to me, so I'm hoping someone might have found it in Northwestern CT.