I had a client call me that wanted a unique and fun rehearsal dinner invitation but had a little challenge. They were serving mexican food, and it was going to be a seated dinner with place cards and table numbers. The only invitations she could find with that theme had sombreros, margaritas, and other graphics that did not fit image she wanted to portray for her guests. Therefore, I found a graphic that looked like mexican tile and she loved it. It provided her with the impression to her guests that although they were serving mexican food that did not mean that this was an informal event. This is for a wedding, after all :).