you could mabye break down a box trace all tabs and box and make a stencil out of cardbord or cardstock? or just measure a box with a ruler and take write down the dimensions.
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Nes 30 C.I.B./ 122 Carts Pac Man Cocktail Arcade Table
Snes 10 C.I.B. / 20 Carts
SFC 2 C.I.B.
N64 8 C.I.B./ 16 Carts
SMS 35
Genesis 24
Total games 267