(CNN) -- While bears have been taking over Wall Street in recent weeks, other investors see a bull market in Beanie Babies.

Some parents have spent a small fortune on the understuffed bags of pellets that children crave, but it's an expense that could generate a future fortune.

Correspondent David Mattingly shows how some people are cashing in on the cuddly creatures that have turned into hot collectibles.

VIDEO Better than the stock market? Windows Media 28K 56K

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"The Beanie Baby Handbook [Including recipies]" by Les Fox,Sue Fox,Jeanette Long "The Beanie Encyclopedia: Identification and Values" by Susan S. Carey "The Beanie Baby Handbook" by Les Fox "Beanie Mania: A Comprehensive Collector's Guide" by Becky Phillips,Becky Estenssoro,Robyn Konlon (Illustrator),George Burns (Photographer) "The Beanie Family Album and Collector's Guide" by Shawn Brecka Click here for additional reading on Beanie Babies