We are currently giving away a car and a laptop computer (2 seperate giveaways). On our website, we usually include a graphic of the items we are giving away. I am concerned that there may be problems if the graphic is not an exact match to the item we are giving away. My question is, if the graphic is not an exact match, should we use a disclaimer that says something about the fact that the graphic may not be identical to the item we are giving away? If so, what should the disclaimer say?