Wow!
This Idea just hit me!

I really need a generic prop pack for use in role playing games (1inch/ 30mm scale).
One that would include placeable special effects that could be used during a game. These would be useful for modern / medieval or future settings.
The things that I'm thinking of are:

Flaming Oil (Like from an oil flask or a Molotov cocktail)

A wall of fire ( Like from a magic spell or for Eval Kineval to jump over )

A wall of Ice

A wall of Force / Force field

A billowing smoke marker

A small dust devil [/i]A mini-cyclone (inverted cone) that would be at home on the plains of Mars or in the lair of a Wizard

A placeable corpse marker

A magic hand of force standee Is it a spell? or a high tech hologram?

I'm sure that a lot more items could be made, but thats what comes to mind right now.

Any backers on this one?

You will find some of these in existing sets already. The Force Fields are in First Light: Retrofit, the Flaming Oil is in one of the Mayhem sets, etc.

You might take a gander through the SciFi and Modern set galleries; eat set comes with a good variety of props that might very well meet your needs.