One of the suggestions submitted by Miguel Balauag from Stanford:

This gameplay variant favors the Mafia. During nightfall, after the Mafia choose someone to kill, they also choose one person to frame. If the Detective (Angel) asks about the framed person that same night, then the moderator says that the framed person is Mafia.

This variant is somewhat similar to the Miller, execpt obviously that this one is a "mobile" Miller :-)