A tin of Pond Slime
Pond Slime is a potion ingredient, which, given its name, may have consisted of one or more types of algae.
A sign advertising Pond Slime could be found on Platform 9¾ near the Hogwarts Express in the early 1990s. Horace Slughorn kept a tin of it in his personal stores.
Appearances
- Harry Potter and the Half-Blood Prince (film)
- LEGO Harry Potter: Years 1-4 (Handheld versions only)