The default sculpty texture.
As I don't know if there actually is one because the current edit box is greyed out. Why not? Probably it's licenced? Noone has bothered? I propose something entirely different.
I don't even know if it could be added the the library. I havn't tried. But if it can, you can use this in your server. Then tell me how.
Sakai, you may have other ideas but you can certainly use this if you wish.
I went to Blender anyway and made one that I thought might be of use, is simple but defined. It's a pawn. As in Chess piece.
The default in Second Life is an apple. It would be nice to be unique in this department.
The pawn has obvious curves, unlike the apple which is easily mistaken for a sphere.
Maybe it's not the best shape. I could make another. Ideas??
Here is the sculpt-map and the plain prim.
Sculpt map in TGA format here

You can use this texture for any purpose. It's LOD optimised. Released with Creative commons 2.5 By A.