- "'Oh, she… came home every holiday… turning teacups into rats.' — Petunia Dursley"
- —Card description
The Teacup to Rat spell card is the seventy-fourth card of the Diagon Alley Expansion of the Harry Potter Trading Card Game.
The illustration on the card was made by Darrell Riche, and it depicts Petunia Dursley sipping tea while the teacup turns into a rat.