So to have a 'Full DIY Cake Set' you need to have five candles of each color and five of each candy and so on before you can say you have a full set. Not just one piece of each.
Does that count for the rest of the items on the site? Say you get 4 of the same color bows. Do you have to keep all 4 to say that you got a full set of items? or can you just keep one and call it good?