Here are some suggestions:
Trivia!
Have some questions about the bride and or groom ready to be asked and see how many people "really" there about to be wed friend. (questions can include things like, how they met, what was the first job that the bride held... you get the idea)
Guess?
Find or buy a cute container or bottle and fill it up with candy, or safety pins, or anything having to do with the wedding or shower. Make sure you know how many pieces are in it before you seal it up. Pass the bottle around and have the guests guess how many pieces are in it. Have them write on a piece of paper with their guess. Who ever is the closest, wins.
Wedding Dress:
Before the shower, purchase several rolls of white toilet paper. At the party, divide the guests into two or more groups of 3-5 people. Each group must choose a model for their wedding dress (mothers of the bride and/or groom work wonderfully). The goal is for each group to design and fashion a "wedding dress" out of toilet paper. Accessories are allowed (earrings, bouquets, trains, headpieces, wedding ring, etc.), but they must all be fashioned out of toilet paper. Once the groups are finished, the bride must pick the winner of the contest. This is my favorite bridal shower activity. And brides love this contest for the wonderful photo-memories it provides.
Who knows the Bride Best
....this is similar to one that I said earlier (trivia game) Only the Bride to be fills out an info sheet on herself (favorite food, restaurant, pet, place she wants to live ..etc.) she should have about 20 things. For example: If you could live anywhere in the world, where would it be? What is your favorite place to eat lunch? Give the same questions to each guest and have them fill out what THEY think her answers would be. -----Got the idea?
Purse power!
This is a great game! Have all the guests have their purses in front of them for this game. Make a list (beforehand) of common and uncommon things that can be found in a woman's purse. Assign each item a point value. (hairbrush might be worth 2 points, lipstick 3 points/5 if it is red, mirror...etc.) Uncommon items should have a higher point value (lotion, staple remover....you get the idea!) Liven things up a bit and put down a condom and value that at 20 points! The list is endless and is great fun! Keep the items simple and not too uncommon or you may wind up with an unhappy guest who doesn't have anything but a wallet in her purse!!
VARIATION to this game might be: Have the BRIDE to be hold the "master" and let her decide what "item" should be found and the first person to present that item receives the points for that round. You will need a score keeper or let them keep their own.
Clothes Pins.
You start with a hanger with about 20 clothes pins on it. Each person gets a turn to get as many clothes pins off without dropping any and only using one hand to hold the hanger and the other hand to take the clothes pins off. When a clothes pin is dropped you count how many they got off and the person who gets the most pins wins.
Clothes Pin.
This one is a game as well as an ice breaker. When guests arrive to the party, each one is given a clothes pin (usually decorated in the theme colors of the wedding ) and instructed NOT to mention the Grooms name during the entire shower. If someone catches another person saying his name, they (the person that said his name) must give up their clothes pin to the "catcher". At the end of the shower, the person with the most "pins" is declared the winner and WINS a prize. This is a fun way of keeping the party interactive and helps people to relax a bit easier.