I am not big on baths, but when I have them, I want to relax in a pool of hot water with bubbles, scrubs, an eye mask, and my ipod. Book optional.
So when I stumbled upon this great site called Instructables, and the first link on the right was for bath bombs, I knew I had found a new addiction.
I love all things DIY, and this is my next project -- alongside the DIY tea leaf soaps ;) These could make great gifts for your wedding party as you could customize the bombs to your bridesmaids' tastes!
The woman who offered the tutorial also has her own etsy shop called Coco Island Soaps. If you don't want to make them yourself, you should definitely buy through her. Support small businesses!