Alphabet Birthday Round Cake — Rainbow Brushstrokes

Fun and colorful, this single-tier round cake is finished in smooth white buttercream with hand-painted rainbow brushstrokes around the sides and on top. The design features printed paper toppers of cartoon alphabet letters spelling “Happy Birthday,” plus larger letter characters and a bold name topper on the front reading “CRIS.” It’s a playful alphabet-themed birthday cake that works great for kids’ parties and classroom-inspired celebrations. Looking for a rainbow paint stroke birthday cake with alphabet letter toppers? This style is exactly that—clean buttercream, bright colors, and eye-catching toppers for instant height. You can personalise it with your child’s name, add an age number, or adjust the color palette to match your party theme (pastels, primary colors, or your chosen hues). We can also resize the cake or simplify the topper set depending on your budget and guest count. Prefer a minimalist version or more toppers? Just let us know. Upload a reference photo to get an instant price and we’ll help you customise this alphabet cake for your celebration. Cake Sizes and Corresponding Price: