Wouldn't these personalized circular calling cards from Posh Girl be perfect at the park setting up play dates? And I think it's so cute that it says "Mommy to Wendy". (Once you have kids, you are no longer known by your name to their friends—but being called Campbell's mommy is just perfectly fine with me.) They come in a set of fifty and comes with a clear top round tin. This would be perfect to toss into my purse (I may just get some for my friends too!) And of course, you can pick the card stock color and font yourself.
Heidi Retro Owl and Tree Customizable Calling Cards, 50 Cards for $18.00 @ artfire.com
Photos curtesy of Posh Girl Boutique