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Dimensions for demogorgon flaps:
- Sewed to rectangle: 1/2 in tall, 4.172" wide
- Circumference = 16.6891"
- Diameter = 5.312"
- Flap height = D/2 + .75 (grommet) = 3.406" (can add extra for bulge)
- Flap height + 1.2" sewed part = 3.906"
- Grommet = 1" diameter, flap 1/4" past edge
- Extra fabric for finishing seam = 1/2"
- Width of top of trapezoid = 1.25"
Dimensions for bottom:
- Circumference = 16.6891"
- Flaps 1" wide, 1/2" tall
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