With the advent of fertility drugs and the ease of creating multiples, more and more of you may know people who are having twins!
I think that the theme for this shower is great! If I were to personally have twins, I would do everything possible to dress and encourage individual identities with my twins.
For this shower be sure to deliver your theme in the invitation, simply stated, "Sweet and Sour Baby Shower, bring gifts with opposite themes".
It would be fun to have a yin and yang symbol on the front of the invitation. Or a devil and an angel...
For games, food and decorations, stick to your "opposites" theme. You can serve spicy and sour foods and choose black and white as a color theme for decor. Black and white is especially effective if the mother-to-be does not know the sex of her babies. You can even decorate the cake with 1/2 vanilla and 1/2 strawberry, decorated with jungle and ocean images side by side.
I love the idea of playing a couple rounds of "Name the opposite".
As the host, you come up with a list of items, people and words, such as "dark, open, happy, Bonnie" also write a master list which includes it's opposite. For example, your list will have in column A: Bonnie and column B: Clyde. Try to think of harder ones than what I just listed.
Your game will involve the guest assigning what they believe the opposite of your word to be. The person with the most correct matches to your master list wins a prize
The ideas are endless for this theme. Help mom and guests learn to appreciate the differences in twins from an early start. Everyone deserves their own identity!