Children or No Children at the Wedding?

While planning a wedding for this Spring a question came up of etiquette with regards to children. They will not be having children at the wedding and I began to wonder how many brides have no idea how to approach this situation. Here is my suggestion...
Emily Post says that if you do not wish children to attend the wedding, the appropriate way to convey this it to only include the parents names on both the outer envelope and the inner envelope. It is inappropriate to say "no children" on the invitation itself.
Most couples create a wedding website these days and if you wish to be more clear about it, it is entirely acceptable to mention your wish that no children attend the wedding on this site.

If you do wish to include children in your guest list, there are several ways to embrace them and keep them occupied throughout the day. One very popular way, is by creating a different, child-themed centerpiece on their table. Below are a few examples:

left: Cookies and Milk centerpiece created by Finishing Touch.
top, right: Edible Arrangements fruit centerpiece.
bottom, right: Centerpieces made of suckers and candy.

For other weddings, we have also included crayons and markers for the childrens' table and have encouraged them to create a sign or card for the bride and groom. For a wedding where the bride and groom had children, they actually created the "Just Married" sign for the getaway car during the reception. The cards and signs will be cherished by the bride and groom and will keep the children busy.
One of my favorite suggestions for an outdoor wedding is to set up some sort of game area with croquet, horseshoes, etc. Kids will love it and the adults are guaranteed to get involved too!

What are your thoughts on children at the wedding? Any more suggestions for making the day "kid friendly"?