Acid Pops
From UnknowableWiki
An Acid Pop, from the flash version of jkrowling.com.
Acid Pops are a magical form of sweets. They are sold at Honeydukes. Ron Weasley was given one by Fred Weasley when he was seven, and it burned a hole in his tongue (PA10).
"Acid Pops" was also a password to Albus Dumbledore's office in Harry's sixth year (HBP9, HBP10).

