Draw a rounded, slightly irregular bucket or box shape for the popcorn container
Add a wide open top with a curved rim
Sketch several fluffy popcorn pieces rising above the container
Make each popcorn piece look like a small cloud with uneven rounded bumps
Vary the sizes and shapes of the popcorn pieces
Add more popcorn pieces inside the container so it looks full
Draw overlapping popcorn pieces to create depth
Add a few small kernels or popped edges for texture
Outline the container with clean, bold lines
Erase any extra sketch lines
Color the container and popcorn if desired