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A week or two before the party, have everyone come up with a question about the bride for her fiancé to answer - make a video of him answering
(Maid of honor duties)To go in Bachelorette invites... brilliant!
Bachelorette party games -- quiz the bride about the groom and have him answer in advance. Then have her win prizes for how many questions she gets correctly. Also, have the bride pick celebrity names for each member to wear on her back. Everyone has to figure out who they are by the end of the party.
Bachelorette Game: Make up questions and get the answers from the groom ahead of time. Guests take turns being the "host". Bride chooses category and wager (alcohol) and the host reads the card out loud. If the bride gets her answer right, the host drinks. If she's wrong, she drinks. Then the next guest gets to "host".