Sentence:  The crutches on the bottom look like the <WSD>Tiny Tim</WSD> model, while the top sports stainless steel walkers and canes and a few crutches that look like they are made from the same stuff as fancy tennis rackets and golf clubs. 
Meaning of the word marked with <WSD> tags:  A poor disabled boy whose death is ultimately averted by Ebenezer Scrooge in the classic tale "(A Christmas Carol)" by Charles Dickens.