Sticky Bellies Baby's Firsts Milestone Momentos Stickers. This Sticky Bellies collection is a great way to mark your little one's milestones. These bright and colorful stickers give the appearance of a sewn-on applique in the convenience of a removable sticker! This gender neutral set includes 13 stickers to track milestones from birth to toddler years including four "fill-in-the-blank" stickers for a personal touch. These adorable opaque heavy-duty monthly stickers can be removed and reapplied for several photo shoots to help parents photograph each "baby first" with style and ease!