Muggle supplies used to create Harry Potter’s stamping grounds:

• A quarter-mile of cardboard.

• 160 sheets of Styrofoam (Diagon Alley).

• 537 rolls of toilet paper and paper towels (candles in the Great Hall).

• 537 tea lights.

• 180 foam pool noodles (to make the edging around doors and windows).

• More than 5,000 Command Strips (to hold the walls up).

• 307 bottles (for Prof. Severus Snape’s potions room).

Allie Shah