If it looks like a duck and quacks like a duck, then it is a duck, goes the well-worn saying. So what, then, should we read into the logo of a new law firm in Dorset, The Commercial Law Practice, featuring a pink rubber duck? The precisely named firm's website pictures the duck prominent among some traditional yellow rubber ducks, and comes with this heady promise: 'You might spend three seconds looking at the pink duck and a lifetime being grateful that you clicked on it.' A press release from the firm adds (with our apologies for the tautology): 'A model pink duck has become the defining symbol of the new legal practice's identity. The symbol has been used to differentiate the law firm in a positive and professional manner as one that is different from other legal practices.' It is easy to make lame (duck) cracks when firms try something different on the marketing front - for example, Osborne Clarke's lynx logo took its fair share of stick when launched but is now firmly established - so good luck to Lee Wilkins and Joss Payne in their new venture. But we cannot resist just one duck joke: How do you make a duck sing? Put it in the oven till it's Bill Withers.