"Us ...We take it in turns. George did the Fainting Fancies..."
-- Harry and Fred Weasley (OP6)
One of the range of sweets found in a Skiving Snackbox, this causes the eater to faint. During the twins’ beta tests on the volunteer Gryffindor first years, the eater remained unconscious until fed the antidote by someone else. Hermione found these testing methods alarming (OP13).