KnockKnock Affirmators 50 Affirmation Cards to Help You Help Yourself. Even pessimists like a little positivity, so comedian Suzi Barrett created Affirmators inspirational-but-not-cheesy affirmation cards. 50 Cards, each 3.75 x 5-inches, plus instruction card. Affirmation cards as a part of your daily self care routine can be truly transformational. Looking for spiritual gifts for women pals? 4 out of 5 oracle card decks agree: Affirmators! illustrated unicorn cards are the stress relief gift of women seeking a bit of self care without the woo-woo. Conceived and written by Suzi Barrett, illustrated by Naomi Sloman and published by Knock Knock.