Rather than a couple of hundred bucks for a plastic dog that looks cheaper than my old 80's goose lamp, why not just use an inexpensive stuffed animal (e.g. a bear) which you've cut a small slit into (say where the Charmin don't leave pieces) and stuff the excess cables into the animal's cavity?
As for me, I bought a few feet of clear, flexible plastic tubing, spiral cut it, then wrapped it around my cables. A thinner-diameter tube keeps my keyboard & mouse cables from getting tangled, and a larger one keeps the video cable plus the ethernet and power cords neatly arranged. One really great advantage of this is that you can split off any cable at any point (e.g. the power for the computer is at a different spot than the power for the monitor. Of course, for power cords, it can be helpful to have an assortment of lengths to make this possible.
Oh, and the cost is about 1/1000th the price of the "Woofy". I can organize the whole house for less than the price of one of those hollow plastic dogs.