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Secret Heart Box with Hidden Locking Mechanism

Secret Heart Box with Hidden Locking Mechanism, design preview, hero tilt

Design preview. Rendered from the file, not a photo.

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What it does

  • Shaped like a heart with a hidden mechanism, so you can tuck away a small note
  • Opens through a concealed catch, so only the person who knows can get inside
  • A heart-shaped body with an internal locking part built into the design
  • Made to order in the USA after you order, so it starts as your own gift
  • A quiet way to hand someone a small keepsake or a folded note for valentine's day

Heart boxes come in many forms. This one hides a mechanism inside its shape, so opening it takes a bit of knowing how. The heart shape looks like a simple decoration until you find the hidden catch that lets it open.

Inside, the box holds a small locking mechanism built right into the heart body. You can slip a note, a ring, or a small trinket inside before closing it back up. The outside gives no clues, so it works as a decor piece on a shelf or desk until someone learns its secret.

It makes a small, personal gift for valentine's day or any day you want to hand someone something meaningful in a fun way. Each one is made to order in the USA after you place your order.

109k downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What you get

  • This design prints as one piece.
  • Nothing else to print or buy for this to work.

What it is made of

Designs like this print well in PLA. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.

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Who made this design

Designed by emmett. We did not draw it.

Shared under Creative Commons, credit and share alike. See the original design