Here are some bullets I created earlier with Bullet Creator:
Red, Green and Blue spheres with R, G and B images mapped on them.
Red, Green and Blue spheres with R, G and B images repeatedly mapped on them.
Spheres on different heights above the page.
The sample image at 350x350 pixels: calculated in about 8 minutes with an Intel 486DX4-100 and a RAMdrive. If it doesn't look really smooth that is because it is saved as a JPEG image with a compression factor of 10, which makes the image about half the size in bytes as with a factor 1. If you're viewing the PNG version on a 24 bit graphics system, it should be perfect.