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21st Birthday Coloring Page, Happy 21st Birthday Hidden Message, Mystery Color by Number, Birthday Gift for Adults PDF

NowPrice:$5.17

Original Price: $6.90

25% off

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Sale ends in 3 days

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Highlights

A birthday surprise to colour: balloons, cake and presents around the edge — and HAPPY 21ST! appears in the squares.

HOW IT WORKS
1. Download the PDF after purchase (US Letter and A4 are both included).
2. Print the colour page at 100 % ("actual size").
3. Give it to the lucky person — they colour each square by its number and slowly discover the message.

WHAT'S INCLUDED
• Gift cover page (so nothing is given away)
• Mystery colour page — frame-ready: just the picture, no header, white background (printer friendly)
• Big squares (3.5–4.5 mm, about 2,400–3,900 of them) — relaxing, not fiddly
• How-to page with the numbered pencil list (common shades)
• ONLY-FOR-THE-GIVER.pdf — the coloured answer, just for you

GOOD TO KNOW
• Digital download — nothing will be shipped.
• Coloured pencils or felt tips work; thicker paper (120 g/m² / 32 lb) is best for felt tips.
• Colouring time: about 2–3 relaxed hours.
• For personal use only.

Instant Download

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Instant download items don’t accept returns, exchanges or cancellations. Please contact the seller about any problems with your order.

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Listed on Sep 25, 2026
Homepage Art & Collectibles Prints Digital Prints