A disguise kit costs 30 gp, and is usable by thieves of any level.
Disguise kits include items like wigs, makeup in a variety of humanoid skin tones, fake mustaches and beards, and shoe lifts.
For each turn spent in preparation, the thief has a 1 in 6 chance (up to 3 in 6) to fool others with his disguise. The thief must make this roll each turn he's in proximity to others in order to maintain his disguise.
The referee applies situational modifiers as appropriate. For example:
- Dim lighting: +1
- Passing at distance, or no interaction: +1
- Merely hiding own identity by passing as anyone else: +3
- Disguised as significantly different race or sex: -1
- Disguised as an individual known to the others: -3