Gather what you have
Start with supplies already in your cupboard. No paid kit, special machine or account is required for this project.
Let’s make it
Draw a broad triangle
On a separate sheet, draw a triangle shorter than the front of your folded card and about two-thirds as wide. An adult cuts it out. A broad triangle is easier to fold than a very tall, narrow one; test one before making a batch.
Fold from the bottom upward
Starting at the wide base, fold a narrow strip toward you, turn the paper over, and fold a similar strip back. Continue the accordion folds toward the point. They do not need to be perfectly even. Open the triangle gently so the folds remain visible.
Make a gentle raised shape
Place the folded tree on the card front and spread it only slightly. Glue the back of a few folds to the card rather than flattening the whole tree. Hold it in place until the adhesive grips, following the glue's directions.
Decorate with drawing
Draw a trunk below the tree and a star above it. Add small drawn decorations to the card background instead of attaching beads, sequins or loose pieces. Write a greeting inside while the front dries.
Choose how to deliver it
Hand-deliver the finished card or use a roomy envelope once it is fully dry. Check postage and envelope requirements separately before mailing a raised card. The craft should not be mistaken for a guarantee that a standard stamp will cover it.
Make it your own
Use a plain white tree with pencil patterns for a winter card, or fold a wider shape into a fan for a birthday design.
Keep a little memory
Date the back and keep a picture of one finished card, with the maker's permission.
A note for the grown-up
Adults handle scissors. Use appropriate drawing supplies and keep paper and glue away from heat. Avoid small loose decorations.
Adapt supplies and participation to the people joining you. Watching, drawing, dictating an answer or passing are all welcome. Time estimates are planning suggestions, not measured setup promises.