I think it's a great idea, but I'd probably leave out last names and email addresses for the younger kiddos. That information can be shared once the parents have communicated.

I've been designing and re-designing cards from Moo for this purpose, actually. I have ordered mini-cards in the past and have been very impressed with the quality and price.

I also think it's a great idea. They are perfect for school books and to place in gifts in birthday parties.

I'm not feeling it at all.

I think this would be a great way for older kids who make a friend at school to be able to help coordinate after school/weekend playdates on their own. They can exchange information and get it to their parents. Although I would also leave out last names

Really?
I'm a working mom, I know how busy life gets, and I'm prepared to make some concessions for a changing world (and do my best to remind myself "to each his own"), but if your kids need business cards I think it's time to slow life down a bit.
Kids need spontaneity and community, not appointment books. Families and children have connected with each other for generations without the trappings of adulthood insinuating themselves in childhood. This makes me sad.

The last thing I need is more pieces of paper to deal with! Kids text and use Facebbok today (supervised, I hope!), which really negates the need for swapping paper. It's also not very green. And, finally, this kind of thing seems to be a great example of the growing divide between the rich and everyone else. I'm guessing many of us, if not most, might find this expensive to be more of a luxury than necessary. Sorry to sound so negative, I just think there is more to the trend than a cute idea.

I like moo, that's where I get my cards done, lovely quality.
But I have also designed these dinosaur ones...
http://www.zazzle.com/paulstickland/businesscards for children. I give away loads at my author visits and workshops, costs a fortune!

These might be cute for kids to use while traveling as a way of keeping in touch with kids they meet along the way.

Nope. Silly. Not for kids that young. And for older kids its just pretentious. Sorry, I really don't like it. Plus, in the wrong hands, dropped on the sidewalk...you know how the worries go.

I'm sorry, but I find this completely ridiculous. It's definitely a safety issue, no matter what age. Who has the dispensable income to buy these things? All I can think about is that scene in "American Psycho" where all the businessmen are comparing their cards and trying to one up each other. I can usually find a place for niche products, but this one is a no.

I think that this is super useful- most of the moms with kids at my daughter's school work so I see their nannies or maybe the grandparents at school pick-up. The problem is that there are lots of foreigners so communication is not always easy, plus, due to divorce and remarriage, parents don't often have the same name as their kids. How much simpler and quicker would this be when you finally bump into a parent or just want the child to have their parent call. I'm all for it.

I have cards, and that's good enough. My kid doesn't need calling cards, and if he ever did, he should use MINE.

Re: expense and cost, who says you have to buy these? Just make your own and print them at home!

Re: spontaneity, anyone can come over to my house anytime to play; I'm always ready, but seriously, not everyone else is ready for drop-bys and drop-ins! I totally understand why some parents want you to schedule with them. I find nothing wrong with going with their schedule if they want to host a playdate; it's their house.

Re: safety, by the time a kid would use these, a kid can just have a phone and talk to his friends about whose house they're going to be at. You don't put your actual address on the card!

Love business cards for my son. He's six, he has autism. Sometimes at the park we meet a nice family and just so there's no pressure, we give them a card and say, if you'd ever like to get the kids together for a playdate, just give us a shout.

Contact on the back, info has my son's first name, and mine and my husband's first name, generic email address and cellphone number. People get a real kick out of them. Not sure how many people will contact us via these cards but I hope they might think of us as, "Remember those nice people with the cute cards? Saw them at the park again today."....

Here they are. Complete with little descriptions about my son's likes, which I hope is helpful, because he doesn't talk much yet.

http://flic.kr/p/6T64eE

It's a bit much, but if it makes you happy, so what? I took a little workshop to make letterpress calling cards (with my name) when I was pregnant and I've used them a lot when other mommies are fumbling for a pen...

i completely love it. i kept meaning to print up some cards for my 5-year-old, because he wants to get together with kids from preschool but i do not know their last names, or know who their parents are, so how am i supposed to coordinate that? if he could give him a little card with his name and (MY) phone number and email, then at least there's potential for the other kid to say, "hey, can you please call my friend's mom so we can meet at the park?"

I don't think the money is the issue. Vista Print and probably other websites are always giving away cards practically for free.

When I ordered my family contact cards, or mommy cards I guess, I did get my daughter some, but she doesn't use them. I think one family contact card is sufficient for us, and super useful. I don't think they're pretentious though. Unless your child hands them out on a silver tray.