Coupon for Divorce Lawyer
There are better ways of saying "I don't like your fiancee" than giving your friend a half-off divorce coupon. Like not going to the bachelorette party, for starters.
Videos of Soon-to-Be Husband's Pornography Career
If you should discover that your BFF's BF is a porn star, tell her in private. Don't say, "Have I got a surprise for you!" then put on a tape of him plugging away at Swedish triplets. That will never end well.
Baby Carriage
Thanks for reminding your friend that the end result of the penises all those novelty products are mimicking is pregnancy. That's sure to put a damper on the evening.