「Boo」は、古い印刷カード風の抜き型イラスト4点が並ぶ、ヴィンテージ調のハロウィンステッカーシートです。各ステッカーにはクリーム色のバナーに黒い筆記体が入り、その上にオレンジのジャック・オー・ランタン、背を丸めた黒猫、ほうきに乗る魔女、枝にとまるフクロウが、古びたクリーム色の紙に描かれています。バナーの文字を名前、挨拶、パーティー名に替えて、オリジナルのハロウィンラベルやギフト用に作り直せます。

Create a square vintage Halloween clipart set on a plain warm cream card background. Arrange exactly four separate, individually cut-out decorations in a spacious, even 2-by-2 grid, with clear cream gaps between them and no shared frame: upper left, a bright pumpkin-orange jack-o'-lantern with a friendly carved grin and a curled stem; upper right, a solid black cat with an arched back, pointed ears, and curling tail; lower left, a cheerful witch riding a broomstick, with a pointed hat and simple dark silhouette details; lower right, a wide-eyed owl perched on a small crooked branch. Give every decoration its own irregular die-cut cream margin edged with a thin dark outline, and its own small scalloped or ribbon-shaped cream label directly beneath it. Print exactly “Boo” once on each of the four labels, clearly legible and spelled with that capitalization. Letter each “Boo” in a witch's quick hand-lettered script written with a sharp dip pen: hairline-thin upstrokes and noticeably heavier downstrokes, slanted about 15 degrees to the right. The capital B has a pointed top, never a looped flourish; keep both lowercase o counters open, the letters mostly unjoined, and the baseline gently hopping. Use warm near-black ink, with generous clarity at small label size; playful and witchy, not frightening. Make the illustrations look like 1930s–1950s printed Halloween party decorations: flat colored shapes, simple dark outlines, shading only in flat color shapes and coarse halftone dots, with slight misregistration between print colors. Limited pumpkin orange, black, cream, and a restrained touch of olive green; never neon. The cream ground is lightly yellowed printed card with subtle age, faint creases, and gently worn corners, but remains visually plain and uncluttered behind the four pieces. Flat printed light throughout, no realistic scene, no oil painting, no gilt frame, no extra objects, no additional lettering, no shadows that merge the cutouts together.