A mad scientist, a cyborg, a visionary, a man of god
A tall lanky man with a distracted air, well versed in arcanotechnology, parapsychology, and a collector of molds, spores, and fungus.
30 job types/classes for PCs in the Cosmic Era
An attractive older woman with more degrees than a thermometer
The characters are given the task of transporting a flask of highly volatile liquid a long distance. The flask cannot be shaken too much or it will explode. The adventure involves stormy sea-voyages, bumpy cart rides through densely populated towns and horseback combat. In short there are many opportunities for it to break and explode.