These games are usually to help time pass better, especially if some of the guests do not know each other well (women who have come alone and have no one to talk to) These games can be played before lunch is served.
I'm not into the games as much myself, but I've been to quite a few showers where I didn't know the rest of the guests and filling out a crossword puzzle, how well you know the bride, etc really beats just sitting there. :) I highly recommend the bingo game as the gift opening is the longest part of the event.
I hate the toilet paper game, it's so messy, however I recently went to a shower where they used tissue paper instead and the finished dresses came out beautiful. There's more control and they even let the girls use tape.
Each woman is given a clothespin to clip to the end of her skirt/dress. The purpose of the game is to NOT get caught crossing your legs at any time throughout the bridal shower. If one of the other guests catch you crossing your legs then she can grab your clothespin. The guest who collects the most clothespins, wins the game. This can be played throughout the whole shower, no need to set a special time for this game.
Choose 10 - 15 words such as: Church, wedding dress, garter, rings, flowers etc., and scramble them up. Example: 1) ruchch = church 2) dingdwe sreds - Wedding dress. Give your guests about 10 minutes to figure out the words. The guest with the most words spelled correctly wins
Hope this helps! :)