Foil wrapped thank you mints available in silver or gold foil. Say "Thank you for sharing our special day" on the wrapper.

Love Conversation Hearts work great as wedding favours and are available in 2 sizes.
The small ones are approximately the size of a 5 cent piece and there are about 280 per bag.
The large ones are approximately the size of a 20 cent piece and there are about 150 per bag.
Both sizes are $17.50 per bag.