Hand of Glory

Magical object owned by Draco Malfoy which gives light only to the holder. Looks like a shriveled arm.

Draco Malfoy asked Lucius Malfoy to buy him one just before his second year (CS4). Evidently he got it (HBP6)

The Hand of Glory is drawn from English folklore, described as a withered human hand whose fingers, when lit like candles, cast a charmed sleep on members of the household so the thief can rob the house.