I've just seen a lovely idea where the tables are named after songs and (assuming it's a serve yourself buffet) When your table song is played it's your turn to go and eat. It doesn't work with our plans but I liked it and wanted to pass it on.
my brother named the tables after all his favourite bands but thats where the similarity ends. It was a silver service affair with nice little quirks added through out the day.They had funfair stalls to occupy people before dinner. So tombola, coconut shires and candy floss carts etc. Cost an absolute fortune.