I've no idea about the pampered chef tool, but if your icing is too thick, it can easily be thinned out. If you are using a buttercream icing, just add 1 tsp of milk or water. You can keep adding until it is the consistency you need/want, but do add only a tsp at a time. It is amazing how much of a difference just one teaspoon will make!
"You may not have lost all your marbles, but there's definitely a hole in the bag." Grumpy Cat