Daydream Charm

Daydream Charm

Pronunciation
Unknown

Description
Gives the spell caster a highly-realistic 30-minute daydream. Side effects include mild drooling and a vacant expression.

Seen/Mentioned
These were invented by Fred and George Weasley and sold in The Half-Blood Prince at their joke shop, presumably in the form of some kind of physical object, similar to Skiving Snackboxes.