Promotional Items
People often ask for opinions on promotional items. I like things people will actually save (that's the point, right?).
Costco has custom logo USB flash drives. One looks like a little surfboard and one a little skateboard. You could preload them with some promotional material too, I suppose...or maybe you can use it to deliver the appraisal to the client.
I just saw these in The Costco Connection. $11.68