I love personalized touches for wedding related events so these customized soda bottles from Jones Soda caught my eye.
Just visit myjones.com, upload your photo and personalized text, pick the soda flavor and voila, two-three weeks later, you're personalized sodas are at your doorstep. The flavors are super-fun (think berry lemonade, blue bubblegum, fufu berry, green apple, etc.) and colorful (blue, pink, green. peach, red, etc.). I test drove three flavors and they were all delicious (must be the pure cane sugar). The flavors rotate so be sure to check the site often to find the flavor/colors that match your event.
I think they would be a really fun touch for a bridal shower, engagement party or casual wedding. I also think they'd make great party favors along with a recipe for a signature cocktail.