Personalized Cousins Make the Best Friends Baby Bodysuit. Cousin apparel and gifts has three beautiful mermaids and 'Cousins Make the Best Friends' quote. Click on the tabs to choose the product, size, and color that you wish this design to be printed on. Our unisex one piece baby bodysuit make great gift for newborns, babies, infants, baby showers and expectant moms. An ideal gift for any new parent who will want one in every color.