I have been using my Derwent Metallic Watercolor pencils, a set of 12 (all they carry) a lot. I even purchased a set of 36 of the regular watercolors, and have 12 inktense (I thought that really filled out my watercolor pencil set overall since the inktense really are too intense for some coloring), but I go back to the Metallics over and over.
And this is after I complained about them for not being metallic enough.
I think it just goes to show that once you really make a point in using something, sometimes you will then start finding a lot of uses!