Elderberry sauce would also be an excellent remedy for colds in the winter. As brownrexx says, it's good over ice cream. Also good over plain cheesecake, or if you make apple crumble and it turns out a bit dry (as mine often does). A little sauce stirred into some honey in a mug with hot water makes a wonderful soothing drink, especially for a cold.
I suggest that you keep some of your cute jars as they are
.