One Panda Personalized Onesie. Choose from 6, 12, 18, or 24 month sizes. Celebrate your little tweet-heart's first birthday with our adorable Panda Personalized Onesie! This white onesie features a precious baby panda design and graceful lettering, both in black. Simply enter your child's name in the 1st Line of the Product Options to the right, and we'll print it above the design on the onesie. Browse our fantastic selection of Jungle 1st Birthday Party Supplies, from tableware to decorations, and make your little one's first birthday special!