This rubber duck birthday invitation is a hand-drawn crayon celebration built around a toddler's favorite bathtime friend. Yellow ducklings paddle through blue water ripples in the corners, a single orange balloon floats above, and a big textured number sits at the center in thick black outline — drawn exactly the way a three-year-old would scribble it. The page that hosts it keeps the same splashy energy: bubbles rise and ripples expand behind the invitation, the party details arrive on a waddle pass with a perforated tear strip, and the RSVP closes on a deep blue pool panel where the duck mascot waves a reply flag. Guests get a live countdown to the party, a map with directions, an add-to-calendar link, and a note from the family. This template is perfect for third birthdays, bathtime-themed parties, pool and splash parties, and any celebration where ducks and giggles are the theme. The lettering is bold and easy to read, the palette is bright without being loud, and every detail can be personalized with the child's name, age, date, and location in minutes. Parents will love how the crayon-drawn style pairs with rubber duck decorations, blue streamers, and a bathtub full of ducky balloons.