Quick answer: A tunnel card stacks 3-4 frames with graduated apertures inside a folded base, so the eye travels 'into' the scene. It's theatre, in card form.
Fifteen focused minutes beats an hour of Pinterest scrolling. Here is the complete build for make a tunnel card - the same sequence we'd use, with the failure points called out before you hit them.
You'll Need
- A sheet of 200-300gsm cardstock for the base
- A scoring tool (or an emptied ballpoint pen and a ruler)
- Craft glue or double-sided tape - never a glue stick for load-bearing folds
- Sharp scissors or a craft knife
- Your cutting mat and a decent film playlist
Step by Step
- Cut four frames of decreasing size from cardstock - apertures from 9 cm down to 3 cm wide.
- Decorate each frame before assembly: farthest = sky and distance, nearest = foreground detail.
- Cut accordion spacers (1.5 cm deep) and glue between frames, back to front, keeping centres aligned.
- Glue the back frame to a folded card base, or hinge the front frame to make the tunnel close into the card.
- Place a focal figure inside frame two or three - midway depth is where 3D reads strongest.
- Check sightlines: close one eye and confirm the focal figure is framed by all four apertures.
- Flatten gently for the envelope; tunnel cards rebound perfectly if the spacers are creased sharply.
Three Tips That Save the First Attempt
- Sharp, clean aperture edges matter more here than in any other mechanism - every frame is a visible border
- A translucent (acetate or vellum) back panel turns the tunnel into a shadowbox when backlit
- Keep total depth under 2 cm when closed or the envelope earns a 'hand-cancel' stamp
Or Skip the Scissors
Handmade has charm; engineered has 64 precisely-cut layers. If the craft session was a means to an end, the end is here -
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Related Guides
Pop Up Card Templates · Common Pop Up Card Mistakes · How to Make a Pop Up Card
Frequently Asked Questions
How fast can I get one?
We dispatch in 1-3 business days. Standard US shipping is $8 (free over $70), express is $15, and international rates calculate at checkout.
Do 3D pop up cards cost more than regular cards?
Yes, typically $12-$39 versus $3-$8 for a flat card, because each one is cut, folded and assembled by hand in multiple layers. In return you get a keepsake most people display for months - or years - instead of tossing it after opening.
The mechanism, perfected - you just add the message.
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