Trackball ball alternatives?

[bmac300]

I have a 3 inch white trackball and was thinking about changing it for a blue coloured ball.  Does anyone know of a source for a cheap replacement?  I was looking at something like this:

http://www.dube.com/balls/acrylic-colors-juggling-balls.php

These seem like they would fit but are still pretty expensive and i'm not sure if they would have the right feel.

[jimmy2x2x]

Some interesting ones here too for UK members

http://www.firetoys.co.uk/juggling/contact_juggling_balls.html

Wonder what the weight is like and how accurate the dimensions are..

[drventure]

I didn't try the juggling balls, but I looking in a heck of a lot of places for alternatives to trackballs (specifically I was hoping for crystal or an etched globe like look"

I found plenty of possibilities but the dimensions were never right, and let me tell you, if the dims are off my even a tiny bit, the trackball won't work right 

If you find some cool alternatives, definitely  post back!

[milkit]

http://www.twistedquarter.com/index.php?main_page=index&cPath=113_118&zenid=ul13psevib9kjngrstsu1ku842

or my fav, http://groovygamegear.com/webstore/index.php?main_page=product_info&cPath=74&products_id=273