There's a book I've had for years that has lots of great caricatures of pro bowlers in it.  The text of the book is somewhat dated, and the bowlers are mostly old-timers now, but the drawings are worth the price.  My favorites are Marshall Holman with smoke coming out of his ears, and Mark Roth crossed with a rhinoceros.  It's called "How to Talk Bowling" by Dawson Taylor, illustrated by Taylor Jones.  Earl Anthony wrote the Foreword, so it has a good imprimatur.  Here's a link to a place to find it:

http://www.alibris.com/search/search.cfm?qwork=3030817&ptit=How%20to%20Talk%20Bowling&pauth=Taylor%2C%20Dawson%2C%20and%20Jones%2C%20Taylor%20%28Illustrator%29&pisbn=0883659212&pbest=2%2E95&pbestnew=1000000%2E00&pqty=23&pqtynew=0&matches=23&qsort=r

Shiv
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Forever let us hold our banner high