Sticker packs and emoji sets are one of Nano Banana's strongest use cases because they need exactly what the model is built for: the same character across many images with different expressions. This guide covers the chibi character block, the white-outline and transparent-background rules, and copy-paste prompts for six-expression grids and single stickers.
The chibi character block
A sticker character needs a compact, repeatable identity block. Lock the face shape, hairstyle, clothing, and outline treatment; change only the expression and pose. Use exact color qualifiers to prevent drift — "blue hair, not green", "red hoodie, not orange".
✦ Prompt templates
Chibi character: round face, short blue hair, red hoodie, big expressive eyes. Thick white sticker outline, transparent background.
Same chibi character: round face, short blue hair, red hoodie. Laughing with eyes closed, both hands raised, star sparkles. White sticker outline, transparent background.
The white-outline and transparent-background rule
- Always say "white sticker outline" — this is what makes it look like a sticker, not an illustration
- Always say "transparent background" — otherwise Nano Banana fills in a scene
- Keep the same outline weight across the whole pack for visual consistency
- Generate at 1:1 so stickers work on Telegram, iMessage, and Discord
Single-sticker prompts
✦ Prompt templates
Same chibi character: round face, short blue hair, red hoodie. Laughing with eyes closed, both hands raised, star sparkles. White sticker outline, transparent background.
Same chibi character: round face, short blue hair, red hoodie. Sitting at a laptop with coffee, focused expression, small sweat drop. White sticker outline, transparent background.
Same chibi character: round face, short blue hair, red hoodie. Crying with a single big tear, downturned mouth. White sticker outline, transparent background.
Six-expression grid
✦ Prompt templates
Create six expressions of the same chibi character: happy, sad, angry, surprised, sleepy, and excited. Consistent face, hairstyle, clothing, outline, and scale. Grid layout, white sticker outline, transparent background.
Create four actions of the same chibi character: waving, thinking, thumbs up, facepalm. Consistent face, hairstyle, clothing, outline, and scale. Grid layout, white sticker outline, transparent background.
Keeping consistency across the pack
- Copy the chibi block verbatim into every prompt — never paraphrase
- Generate all stickers in one session to keep the style locked
- If one sticker drifts, regenerate it from the same prompt rather than editing the block
- Keep the same aspect ratio (1:1) and quality setting for every sticker
Where to use the stickers
- Telegram sticker packs — export as 512×512 PNG
- iMessage stickers — export as 1:1 transparent PNG
- Discord emojis — keep the face large, minimal background
- Creator merchandise — confirm the model provider terms and applicable rights before publishing