How about food platters.

Can be crafted by Goldsmith based on the material. The food platter can be any food you personally crafted (or bought too I guess), and served on a platter.

Bronze (small bronze plate in design): 3 servings
Silver (slightly more ornate square design): 5 servings
Gold (larger, oval shaped platter): 10 servings

That way GSM and CUL get some usage, and you can finally serve food to guests instead of it just sitting there unused. Once the food is consumed, I'm thinking either letting the platter sit as plain furniture or for added flair, a "dirty" status the same way chocobo stables work. Weaver can craft a simple rag (Cotton Rag perhaps) to be used and cause the platter to be re-usable again.