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Webb’s Golden Mirror (Stencil)

The Golden Mirror: Photograph of a lit jack-o'-lantern carved with Webb's characteristic 18-segment hexagonal mirror pattern. Next to the photograph is the stencil with instructions used for the carving.

What’s almost as fun as a giant golden mirror in space? How about a pumpkin-sized, pumpkin-colored representation of a giant golden mirror, right outside your front door?

Just download, print, and cut to make your very own Webb Space Telescope mirror stencil, perfect for sharing Webb on cakes, walls, clothing, and sidewalks, as well as seasonal gourds. With eighteen small hexagons arranged to form one big hexagon, you’ll be the envy of all your friends and neighbors. 

Find out more about Webb’s mirror: exactly how big it is, what it’s made of, and why we think it’s stencil-worthy.

Pumpkin Carving Materials and Instructions

(Difficulty Level: 2 out of 3)

Materials: pumpkin, spoon, scissors, tape, push-pins or pumpkin poker, carving tool, tea light 

  1. Carefully cut a hole in the top of the pumpkin for the lid. Make sure to angle your blade inward to create a ledge for the lid. 
  2. Scoop out the seeds and strings. Scrape the flesh from the inside of the pumpkin until it is about 1 inch thick where you would like to carve. Scrape to smooth the interior bottom to keep a light level later. 
  3. Trim excess paper, leaving a ½-inch border around the pattern. Fold or cut along crease lines as necessary to fit the shape of the pumpkin and tape in place. Make sure the pattern is smooth on the surface.
  4. Poke holes through the pattern along the dotted lines using a push-pin or pumpkin poker. Remove the paper once fully transferred. 
  5. Saw dot-to-dot, perpendicular to the surface of the pumpkin, starting from the center of the pattern outward. Be careful not to apply too much pressure or the pumpkin could break. You may need to support partially-cut pieces in place while you are cutting. Push the cut pieces out gently from the inside. 
  6. Place light inside and put the lid back on. 

Try Other Stencils

  • Release Date
    October 25, 2022
  • Credit
    Producer: NASA, ESA, CSA, STScI; Designer: Leah Hustak (STScI)

Downloads

  • Webb's Golden Mirror Stencil with Instructions
    png (841.56 KB)

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Details

Last Updated
Aug 28, 2025
Contact
Media

Laura Betz
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
laura.e.betz@nasa.gov

Producer Credit

NASA, ESA, CSA, STScI

Designer Credit

Leah Hustak (STScI)