一套六张模切圣诞贴纸，没有标题文字，采用可爱的卡通萌系风格。雪人、驯鹿、企鹅、姜饼人、小精灵和北极熊闭眼微笑，佩戴红色和绿色的围巾、帽子与铃铛，每个都有白色描边，置于薄荷绿背景上。你可以更换角色、围巾颜色，或在每张贴纸上加入名字或祝福语，制作专属的节日贴纸页。

Create a square Christmas sticker sheet with exactly six separate kawaii character stickers, arranged in a tidy three-column by two-row grid on a perfectly flat pale mint background. Each full character is centered in its own space, similar in scale, with generous clear gaps and no overlap. Give every character a thick, smooth, closed white die-cut outline that cleanly follows its silhouette. Keep all shading and any tiny highlight within each character or its white outline; no cast shadows, glow, gradients, border, or extra decorations on the background. Use crisp, polished storybook illustration with rounded shapes, friendly expressive faces, simple readable details, soft matte color and restrained highlights. Keep the six designs visually distinct and legible at small size. No text, letters, labels, extra stickers, or additional characters. Top row, left to right: a smiling round snowman with a tiny carrot nose, coal buttons, and a snug red knit beanie; a cheerful brown reindeer with small antlers, rosy cheeks, and a red nose; a cute black-and-white penguin wearing a bright red scarf, with yellow beak and feet. Bottom row, left to right: a warm golden-brown gingerbread person with white icing trim and small candy buttons; a merry little elf with a green cap, red outfit, and simple pointed shoes; a cuddly white polar bear with round ears, rosy cheeks, and a small green scarf. Keep each character complete, independently outlined, and surrounded by visible mint space.