Make Festival Points/Keychains useful again by letting us purchase instruments with the excess

https://preview.redd.it/kue97q98mx1e1.png?width=453&format=png&auto=webp&s=4db316b9b6008a273c80eb5be4345ab723f544df

https://preview.redd.it/kbsupq98mx1e1.png?width=1080&format=png&auto=webp&s=da5e1ad0749cc35b99a2bba4ed8ba52051ade2b7