Woot offers Hallmark 0599VFE7982 Valentine's Day Greeting Cards for Kids (Two-Tone Letters, 6 Cards and 6 Envelopes) for $2.99 (orig. $5.99). Free shipping for Prime Members.

Product Description:
Send a cheerful note to a bunch of great kids with this pack of fun Valentine's Day cards. With festive designs featuring silly poems, and festive messages, there's plenty of room to write your own notes inside to your favorite people. Classmates, friends, and family are sure to appreciate a thoughtful note from you as they celebrate the ones they love the most. The Hallmark brand is widely recognized as the very best for greeting cards, gift wrap, and more. For more than 100 years, Hallmark has been helping its customers make everyday moments more beautiful and celebrations more joyful.  

• Send a sweet note to a bunch of great little ones with assorted Valentine's Day cards they're sure to love.
• Card pack includes six cards (3 of each design) featuring foil accented covers and funny poems. First design reads: "Roses are red, violets are blue, you really rock! That's all, I'm through. Happy Valentine's Day." The second reads: "Violets are tiny, roses are smelly, Valentine's candy belongs in your belly! Have a fun day!"
• Buy in bulk to spread the love to all your friends and family or give a special valentine to classmates. Cheerful designs are perfect for anyone.
• Valentine's card pack contains 6 cards with coordinating envelopes. Cards measure 4.4" x 6.4".
• Printed on high quality paper stock, Hallmark's greeting cards are made with paper from well-managed forests.