Disguise kit
Thieves in the Thieves Guild can buy a disguise kit. To get one, a player must locate a Thief Guild Master and say: "(NPC Name) buy disguise kit". The disguise kit costs 700 gold pieces which must be paid for by dropping the payment onto the thief guild master after the buy request has been spoken.
Using the disguise kit will change the character's name and appearance similar to the Incognito spell, but the player gets to choose various aspects of the diguise such as the hair color and style, although they will still be given a random NPC name. Diguise kits last for two hours before wearing off.