Two flat pieces of card can become a small freestanding Thanksgiving decoration when their slots fit together. This project uses a broad, abstract autumn-leaf shape, with one slot entering from the top and the other from the bottom. The same construction also lets you take the sculpture apart and store it flat.
The useful part is getting the joint right. Make the shape simple, test the card on scrap, and leave the decorating until the two pieces fit.
Gather light, easy-to-cut materials
You need clean, thin carton card, ordinary scissors, a ruler, a pencil, and colored pencils or markers. Choose card that lies reasonably flat and cuts comfortably with scissors. If it needs force, choose thinner material. Get adult help with cutting as needed.
Set aside two pieces large enough for a shape about 12 cm tall and 8 cm wide, plus two small scraps for testing. Avoid thick corrugated board for this version.
Draw one shape and copy it
Draw a 12 cm by 8 cm guide rectangle. Mark a vertical center line, 4 cm from either side. Along the bottom, mark a straight, centered base 4 cm wide.
Sketch a broad leaf-inspired outline between that base and a blunt tip at the top of the center line. Give it shallow, rounded lobes and keep the outline symmetrical. Leave out thin stems, sharp little points, and deep notches. The center line should stay inside the shape from bottom to top.
Cut out this first panel, then trace around it to make the second. Cut the second panel separately. Stack them briefly to compare their outlines and check that both flat bases line up. Label their backs A and B lightly in pencil.
Mark and cut the opposite slots
On each panel, measure 6 cm up from its flat base and mark the center line there. This is the midpoint of the 12 cm height.
- Panel A: the slot runs from the top edge down to the midpoint.
- Panel B: the slot runs from the bottom edge up to the midpoint.
The slot width should closely fit the thickness of the other panel. Test this on scrap first: cut two short slots into separate scraps and try crossing them at a right angle. Start with a single scissor cut for very thin card, then remove a tiny sliver alongside it if the fit is too tight. Aim for a joint that slides together without bending the card and does not flop sideways.
Use that tested width for both full-length slots, keeping each centered on its pencil line. Make small cuts near the marked endpoint so you do not accidentally extend it.
Slide the panels together
Stand panel A upright with its top slot open. Hold panel B upright above it, turned a quarter-turn so the two flat panels cross at a right angle. Align B’s bottom slot with A’s top slot and lower B gently.
When the slot endpoints meet at the shared midpoint, both flat bases should reach the tabletop. Seen from above, the joined panels form a cross. Below the midpoint, A passes through B’s opening; above it, B passes through A’s opening.
Check the fit before adding decoration:
- The pieces jam: separate them and widen the tight slot by a very small amount. Do not force the join.
- One panel sits higher: check both 6 cm slot depths. Extend a short slot only to its mark.
- The joint is loose or a slot is too deep: remake the affected panel rather than trimming both pieces smaller to compensate.
- The sculpture rocks: check the slot depths first, then lay each panel flat and inspect its base. Trim only a small uneven edge, keeping the bases level with each other.
Add color, then put it away flat
Separate the panels and decorate both faces. Try orange on one panel and warm brown on the other, with simple drawn leaf veins. Keep extra layers off the slot edges so their thickness stays consistent.
Reassemble and view it from different sides: the colors overlap differently as you walk around it. Place it on a level display surface where it will not be knocked. After Thanksgiving, slide the pieces apart and keep them together in a folder, ready to cross again next year.
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