Yes, just like a car or a house, you can insure your or your child's wedding. Most policies cover injuries to guests and some even cover ruined photographs. If you're worried about something specific happening at the wedding, such as the wedding cake getting squished, you can even insure against that. Most insurance companies will create a plan to give you the insurance coverage you want, while others offer a pre-set plan. But it may well be worth it.
Links Click here for a comparison of wedding-insurance rates from a sampling of providers.
Another view on wedding insurance from Bloomberg Women's Wire. Quotes delayed a minimum of 20 min.