Here's a thought.

If I recall right, the new Battlestar Galactica had a bunch of battles that took place in an Endor-esque forest. (actually, I think every exterior in the shows first three seasons was the same copse of trees).

Maybe some of that, trees with explosions and things, could be tweaked and dropped into the Endor battle.

Or heck, anyone have stome Storm Trooper armor? You and me can drive to Northern California and we can spend a weekend filming you dying in all sorts of ways in the same redwoods they shot ROTJ in.