Thomas Visits the Toy Shop/Thomas' Milkshake Mix was an interactive storybook cartridge intended for the TeleStory Interactive Storybook System released in 2006, developed by HotGen and published by Jakks Pacific. It features two stories adapted from Season 9 episodes. In the pages of the story, pressing the four colored buttons would trigger animations.
- In Thomas Visits the Toy Shop, Henry has Percy's whistle sound.
- In Thomas' Milkshake Mix, Emily has Henry's whistle sound.