Shake, strain, brandied cherry garnish
How to make your own brandied cherries (the liquid is cherry bounce): https://www.blossomtostem.net/brandied-cherries/
I just looked at a bunch of cocktails with gin + Campari -- they often call for a sweeter, fruity or floral addition like Saint Germain or some such. My homemade brandied cherries + bounce packs a fruity but not overly sweet punch, decided to try it, and it was pretty tasty. Voila!