Martha Stewart Living, October 2003
Arrange pumpkins on their sides to mimic a snake. Create a guide for cutting holes later by marking with a pen where each pumpkin touches the next.
Draw patterns on the pumpkins: Make holes in the flesh with a pencil. Then number pumpkins with masking tape so you'll be able to reassemble them.
Using pen marks as guides, make holes where pumpkins meet and at the end of the last pumpkin; scoop out insides.
Carve design: Drill through the snake's pencil marks with a 5/8-inch bit, so light can shine through.
Reassemble snake: Thread a rope through the pumpkins like a string through beads, and knot on both ends; while threading, place a strand of lights wrapped around a glass (or a battery-powered candle) inside each pumpkin.
Battery powered or glass candle
If you'd like to construct a beast as large as this, consider throwing a pumpkin-carving party where each guest works on a different segment.