Want an easy DIY centerpiece for your wedding? Try these simple mason jars, tied with a ribbon in your wedding colors or to coordinate with them, and add Craspedia Billy Ball Flowers (see Fifty Flowers where you can get 100 stems for $108.99) and use some lightly colored water. Easy, simple, and inexpensive. Look for your mason jars at garage sales or buy them by the case at BuyCheaper, either way they aren't very expensive. When choosing your jars consider the size of your tables, larger tables, use larger jars. Or consider using multiple jars on each table but smaller jars. Your call.
I can visualize this with three jars on a table using bright grosgrain ribbon in hot colors or paler colors to suit your color scheme. This is definitely an EASY DIY project, one that is doable on the day of your wedding or even the day before without going insane. (Photo courtesy of Becky Young Photography, Denver, CO)