A fairly cost effective muse. I have used this as a method to devise simple scenarios for my players. It's not very intense and it will definitely require imagination on the part of the GM, but it does help create the framework for a story.

Scenarios I have created involved:

1. Saving an alien defector from space police while on the Moon (Thus limiting the PC's use of their powers).
2. Infiltrating another team who is searching for a Vampire in a crowded market; with the secret goal of helping the vampire escape.
3. Stopping a mad Occultist who runs people off the road using an 18-Wheeler which he has imbued with a fear spell.
4. Rescuing one of the PC's arch-nemesis from a haunted house after the rival botched a spell to summon a demon; things are complicated when the rival sees a way to escape by offering the heroes up in his place

There are several options, but they will require 2 d8 dice and the application of imagination.