In response to the article 'What is that? A ski board' published on Jan. 9, Del Mar resident Linda Brady sent us this photo of her son, Keith, being pulled on a similar contraption by the family's dog, Maggie. Brady's husband is an electrical engineer and built a skateboard out of ski many years ago, much like Will Appleby's ski board we featured. 'Interestingly, our son is also a graduate of Torrey Pines High School and got the same comments way back,' Brady wrote. 'Small world!'