Where to buy a little boys tie?

i know this sounds like a crazy question...but please guide me. My son's first communion is coming up and we just got a letter that he must wear a tie. i have a suit and dress shirt for him , just no tie... where the heck do i buy a tie? Do they sell them at Walmart?

About Magen
Birth: December 31
On Moms.com since: Sep 14, 2013