I saw a couple have their caterer carve their wedding dinner menu on chocolate sheets! they also had mini fondue pots as centerpieces on each table with platters of fruit and pretzels! and they gave each of their guests as wedding favors small flower pots filled with m & m's and chocolate covered candy roses! they really looked adorable. That way you have both centerpieces and wedding favors playing a double roll, one is to make your tables look pretty yet they can still take these with them as favors!!! Chocolate covered coffee spoons. A chocolate cake top.
There are also chocolate carvings and of course chocolate wedding cake with different fillings for each layer, like rasberry, chocolate mousse, creamcheese, champagne.