Does it have to match?

Are your toasting flutes and cake serving set supposed to match?  I know they can and they come in sets however is it tacky if they don't match?  Hmmm.... It's not like they are going to be next to each other, right?

I'm having a beach wedding and I love the Lenox Jubilee crystal flutes.  I believe the pearls would tie in nicely however for some reason I don't like the matching cake cutter set.     The Glitter Cake serving set is really pretty, will this pair work?