Instructables
Picture of Cardboard Starfish Costume
This instructable is the result of a school project for technology class. That project was to create a stage/Halloween costume out of recycled cardboard, and all the pieces can only be attached using slotted construction, to allow for greater storage and transport.

Design Brief:

Design and construct a marine-themed costume constructed entirely from recycled cardboard and put together solely using slotted construction for use by a middle school student.

As my group's theme was marine invertebrates, I chose a starfish.

Specifications:
-Made out of single, double, or tri-wall cardboard
-Marine theme
-Slotted Construction

Limitations:
-only recycled materials
-no adhesives
-few parts/pieces








 
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Step 1: Supplies, Tools, and Parts

Supplies:
(S1): Sheet of single-ply cardboard, 3' x 4', 2.
(S2): Sheet of single-ply cardboard, 2' x 2', 2.

Tools:
(T1): CUTTING MAT
(T2): UTILITY KNIFE
(T3): RULER
(T4): PENCIL
(T5): TRIANGLE

Parts:
(P1): STAR FACE
(P2): ARM

Step 2: P1: Star Face

Picture of P1: Star Face
1. Cut the cardboard (S1) into a star shape using the utility knife (T2) and cutting mat (T1). Two of the arms must be 1' 4" to fit the size of the arm pieces (P2), but the rest can be any shape or size. Use ruler (T3) and pencil (T4) to measure the arms. 

2. Use utility knife (T2) and cutting mat (T1) to cut slits into the face continuing from the 1' 4" sides. 

3. Using utility knife (T2) and cutting mat (T1) cut off the arm above these two sides to allow room for the head, but leave enough cardboard to hold up the costume.

Step 3: Part 2: Arm

Picture of Part 2: Arm
1. Cut the cardboard (S2) with cutting mat (T1) and utility knife (T2) and into a horizontal shape with the dimensions 1' by 1' 4".

2. Cut slits 1 1/2" from each side on the 1' side with cutting mat (T1) and utility knife (T2).
Dr. Pepper3 years ago
Interesting.