Bubbles Birthday Thank You CardsBubbles thank you cards feature a big bottle of bubbles and a fun striped and polka dot background in bright primary colors. These are perfect for thanking guests for coming to your outdoor themed party! Some features of our thank you cards: Professionally printed on 80# cardstock paper so you feel the quality. Teaches children how to send a meaningful handwritten note Easy to use because all you have to do is simply fill in and mail out 10 cards and