THiNK! McCann questions the wisdom of designing your own promotional materials, providing an interactive web application that lets users determine the composition of graphic images. Using a slider, images can be weighted for three components. The resulting graphics range from cute and engaging to downright strange and scary. The headline reads, "Everybody could make ads," followed by the tagline, "THiNK! before you reproduce it in real life." The THiNK! McCann interactive site makes an effective case for hiring a professional advertising agency