This sounds like a perk

If you're a leap baby...

http://qz.com/626563/how-leap-year-babies-celebrate-their-birthdays/

you can get a kid's birthday card...LEGIT.

http://www.syracuse.com/news/index.ssf/2016/02/skaneateles_leap_year_baby_celebrates_10th_birthday_in_style.html

I was going for a cute card, but then...this...LEAPED.

http://underachievingdomesticgoddess.blogspot.com/2012/02/nothing-displays-my-poor-math-skills.html

But it's a joke.