One Bumble Bee Personalized Onesie. Choose from 6, 12, 18, or 24 month sizes. Celebrate your little bug with our adorable Bumble Bee Personalized Onesie! Simply enter your child's name in the 1st Line of the Product Options, and we'll print it below the design on the onesie. Having a busy bee party? Browse our fantastic selection of Bumble Bee Party Supplies to make your child's birthday something to buzz about!