Chaos players made it to Blood Bowl around 1990 or so. They were suitably spiky and weird-looking. There are some interesting rule variations for using them, IF you can track down the various Blood Bowl books.
The prices vary a lot. A team like the one above might cost you over $150, but a single figure starts at about $3. Check eBay.co.uk for the best selection.
See more on the superb 1980s fantasy Football game, Blood Bowl by Games Workshop.
Thanks to Richard 'Orclord' Hale and the superb miniatures website Stuff of Legends for permission to use the images and other information.