Get the JAM Paper Birthday Cake Blank Card & Matching Envelopes Set, 25ct. at Michaels.com. Just because you're one year older doesn't mean you have to be down in the dumps about it. And if you get these birthday cards, you'll surely be happy! Birthdays are about celebrating life, not getting upset that you're not a teenager anymore. And if you want your mom or dad's birthday to be extra special, these happy birthday cards are the perfect fit.