One of the simplest themes is a baby based on the gender of the baby. Decorations for the party can be pink for a girl or blue for a boy. Include balloons, desserts and party favors that match the predominant color. If the mother does not know if she is going to have a boy or a girl, you can decorate the party in both pink and blue.
If the mom-to-be loves books, make children's books your shower theme. Decorate the room with well-loved children's classics and posters. Use books as table centerpieces. Ask baby guests to purchase a board book in addition to traditional baby gifts.
When you have a baby, you can never have enough diapers. Help new parents stock up on diapers by throwing a diaper shower. Ask party guests to buy a package of diapers. Provide an incentive to buy diapers by allowing each party guest to win a chance at a special prize if they bring these to the party.
A cartoon character shower is another fun theme. Each party guest selects her favorite cartoon character and purchases a baby gift featuring that character. Whether it's a quilt, an outfit, a diaper bag, a stuffed toy or anything in between, cartoon character themes are perfect for a shower.
If nursery rhyme characters are more your thing, you can find plenty of baby items that feature them. Decorate the room with traditional Mother Goose characters, make or purchase a cake in the shape of Mother Goose and ask guests to look for presents that feature characters from well-known nursery rhymes. This idea is perfect for parents who plan to decorate the baby's room with nursery rhyme characters. If they want a nursery rhyme quilt for childrens beds, a crib mobile featuring Humpty Dumpty or other Mother Goose items, a shower nursery rhyme theme can help them begin the decorating process.