Halloween paper pumpkin decoration patterns

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No scissors or blade were supplied. All three designs use only A4 orange paper, A4 black paper, pencils, and glue: drawing, folding, and gluing. Do not separate a sheet by hand. A cut version is only an optional alternative if you later confirm you have scissors. These are not print-ready vectors and not tested cutting templates. Every size below is suggested. Do a scrap-paper trial of the folds before you repeat a design. Mood: friendly, for a tabletop. Use more than one A4 sheet if you have it. Sheet counts below are suggested.

1. Geometric: Wide Rib Fan
Shape inventory: 1 orange A4 body, 1 black A4 folded into a wide accordion, pencil marks, glue.
Suggested proportions: fold the orange sheet on the long side into 5 wide panels, each about a fifth of that side. The black accordion ridges should be wider than a finger, not hairline.
Assembly order: scrap-fold first. Fold the orange sheet. Glue the first panel to the last so it stands as a fan. Fold the whole black sheet accordion-style into wide ridges. Glue that accordion across the front so the ridges read as ribs. Pencil one soft oval, not a face, on the front.
Approximate sketch:
  __  __  __
 |##||##||##|
 |##||##||##|
  --  --  --
## means a wide folded black ridge.
Optional cut alternative, only with scissors you confirm: cut separate black bands and glue one on each panel.

2. Botanical: Leaf Collar
Shape inventory: 1 orange A4 tube, 3 black A4 sheets each folded into one wide leaf, pencil veins, glue.
Suggested proportions: the short side of the orange A4 is the standing height of the tube. Each folded leaf stays about two fingers wide or larger. Leaves sit only on the lower third so the orange body still reads as a pumpkin.
Assembly order: scrap-fold a tube. Glue the short edge of the orange sheet to make the tube. Fold each black sheet in half, then fold the sides in so it looks like a wide leaf. Keep each sheet whole. Pencil one broad vein on each leaf. Glue the leaves around the lower third only.
Approximate sketch:
  ( orange tube )
 ~~~  ~~~  ~~~
Folded leaves sit at the base.
Optional cut alternative, only with confirmed scissors: cut leaf outlines instead of folding whole sheets.

3. Playful: Grin Pumpkin
Shape inventory: 1 orange A4 cylinder, wide pencil eyes and smile, 1 black A4 folded into a bow, glue.
Suggested proportions: the cylinder uses a full orange A4. Eyes and smile are wide pencil curves, friendly, not jagged. The bow is a folded black sheet, thick enough to see from the table, not a thin ribbon.
Assembly order: scrap-fold a cylinder. Glue the orange seam so it stands. Draw the wide eyes and the wide smile. Fold the black sheet into a simple bow: fold in half, then fold both ends to the middle, and pinch the center with a glue dab. Glue the bow at the top like a hat, not a scary stem. Cheeks, if you want them, are wide pencil circles, not separate paper.
Approximate sketch:
    [bow]
  (  o   o  )
  (   \_/   )
Pencil smile, folded bow.
Optional cut alternative, only with confirmed scissors: cut a smaller bow and two cheek circles from black paper.

Tabletop: stand each piece so it does not roll. If a tube rolls, glue a folded orange tab as a foot. That tab is still orange paper, folded, not cut.
If children join, an adult should review glue, folded pieces, and table space first, and should do the gluing. Keep folds large. The stated skill level is a beginner adult.