The theme was dress up time for my daughter's shower. Everything was pink and green , there was a candy buffet for the mom to be who craves nothing but candy, and there were tutus as centerpieces, and pretty pink dresses made out of pink napkins, & pink powder puffs given as favors. Everyone was also given a pink boa.
Just all girly things.
Traditional, but this is for a baby shower so I don't think this question really applies.
favorite web resources were etsy and google search. The baby sock topiary was made with a styrofoam ball, rolled baby socks, with lollipop sticks inside, stuck into styrofoam, fill with cut flowers and tulle.
The tutus and candy buffet, as well as the baby sock topiary.
Create a theme and carry that through the entire shower.