I am selling a 15lb. Yellow Dot Legend (blue model).  This is Columbia's 1991 reissue using the Original Yellow Dot formula (without the Urethane additive used in the mid to late 80s).  I have owned this ball for about five years and have never had the heart to put holes in it.  

 

It is a twenty year old ball so I can't guarantee how it would take to drilling at this point.  Definitely a good collector's piece.

 

Asking $115 shipped with payment via Paypal or Money Order.