Quick Request: "Force-Shield" Effect for Space-themed maps.

I'm currently tinkering with a diplomacy style map with a space setting and was hoping to get a decent force-shield effect for the ships. It doesn't have to be amazing, anything better than the mana shield effect will suffice.

Of course if anyone knows of a decent pre-existing effect just link to it and I'll be satiated.

Oh and this isn't urgent or anything, i just thought that it would be fairly straight-forward effect to make, perhaps with some wider applications.

Thanks in advance to anyone who makes something/finds a decent pre-existing effect.

I recall the obsidian statue having a shield-ish looking effect for it's essence of blight and spirit touch spells, although it's not permanent like the mana shield, only temporary. Probably not what you're looking for though.