First, find 3 or 4 pumpkins of all different sizes but pretty close to the same size. Place them in order from smallest on the left to largest on the right.

Then take all except your smallest pumpkin and gently pull off the stem. You may need to cut it off but do make sure where the stem was is flat.

Next, take the largest and the next biggest pumpkin and use your hot and ready glue gun to put glue on the largest pumpkin's missing stem area.

Then take the next largest pumpkin and press its bottom firmly down on top of the glue on the largest pumpkin. Hold the two pumpkins together for a few seconds to make sure the glue dries.

Repeat this step above for your next pumpkins until the smallest pumpkin with its stem still intact is the last pumpkin on the stack, on top.