Photoshop
How to make nano sculpties
When you want your sculpties to be smaller then SL can make them, this is what you can do:
Step 1: Open the sculpty map, so that it is visible. In the file menu will 'Save Texture As...' become valid. Now you can download the sculpty map to your hard disk.

Step 2: Open sculpty map in Photoshop and create a new layer above the sculpty map layer.
Step 3: Click on the color picker. Create a midtone grey by putting in the next values for red, green and blue:

Fill the new layer with this midtone grey, by using the paintbucket in the new layer.
4. Change the opacity of the new layer, in this example we use 50%

5. Save the file as tga (32 bits) and upload the map to SL.

The % of the opacity decides how small your nano prim will be in SL. The higher the opacity the smaller the nano prim will be.