Match to Needle Spell

"You'll be starting small, just matches into needles and that sort of thing -"

-Percy Weasley to Hermione Granger

Match to Needle is a transformation spell which presumably transforms matches into needles. It was deemed 'simple' by Percy Weasley during his mention of it to Hermione Granger. Minerva McGonagall taught this spell to her first year transfiguration class in 1991; Hermione Granger was the only one who successfully cast it.