Non-slippery trackball

  I want someone to come up with a trackball with non-slippery surfaces, or a jacket or spray-on deal to make the surfaces non-slippery. i do graphics and layout with a trackball on the left and a graphics tablet on the left and have become fully ambidextrous from doing so. Every trackball i've ever used has been slippery (just like the daggone cell phones i've complained about elsewhere) and it would be great if that could be fixed so i don't lose time getting my hand or digits back where they belong after they've slipped off. Why does every manufacturer seem to think sleek-looking needs to be slippery to the touch? (grump! grump!) Somebody help me!