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Yellow Warning - Contents May Cause Extreme Happiness Parcel Stickers

Yellow Warning - Contents May Cause Extreme Happiness Parcel Stickers

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Yellow "Warning – Contents May Cause Extreme Happiness" Stickers – Round | 25mm, 37mm, 50mm | Fun Packaging Stickers

Brighten up your packaging with a sunny burst of yellow using our yellow “Warning – Contents May Cause Extreme Happiness” stickers! These ready-to-post round stickers are perfect for small businesses, handmade brands, and creatives who want to add a fun, cheerful, and professional touch to their parcels.

Printed in vibrant yellow on glossy sticker paper, these stickers are ideal for sealing tissue, decorating packaging, or adding a joyful finishing touch to every order. A fun way to ensure your customers smile from the moment they open their package!


✨ Product Features:

  • Bold “Warning – Contents May Cause Extreme Happiness” message

  • Vibrant yellow colour – ready to post

  • Printed on glossy white sticker paper

  • Kiss-cut and supplied on easy-peel A4 sheets

  • Perfect for sealing parcels, envelopes, and packaging


📏 Available Sizes (per A4 Sheet):

  • 25mm Round – 48 stickers per sheet

  • 37mm Round – 34 stickers per sheet

  • 50mm Round – 12 stickers per sheet


🛍️ Ideal For:

  • Small business packaging and order inserts

  • Handmade gifts, boutiques, and creative branding

  • Adding a fun and colourful message to parcels

  • Creating a feel-good unboxing experience


🎨 Looking for Other Colours?

This listing is for yellow stickers, but this fun design is also available in: Red, Navy, Blue, Pink, and Purple
Browse the full range of colours on our website to find the perfect match for your brand!


⚠️ Please Note:

  • These stickers are ready to post and not customisable

  • Colours may appear slightly different on screen vs. printed stickers

  • Orders are final unless there is a clear printing issue


Add a burst of yellow sunshine and a cheerful message to your packaging with our yellow happiness warning stickers – a joyful and memorable way to delight your customers!

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