These are some models and textures was using in my supertuxkart track:
Models:
Oak tree branch:
Oak tree bark:
Both textures were drawn by me.
Links:
blend files
Library objects
Objects made by me (license CC-BY-SA):
Roots (far left) were generated from an photograph I took. They look best when placed slightly in the ground.
Stones (far right) can be placed in the ground, or in a cliff.
Objects made by Titi_Linux as tileset models for the RTS game MegaGlest:
Birch tree (middle left).
Willow tree (middle right). I simply imported these from Megaglest g3d models, then exported them to the supertuxkart library objects.
All of these (including the textures) are licensed under CC-BY-SA-3.0.
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