They make me happy just to look at them, all those colors. My children covet my markers. They are always asking to use them. I am always saying 'no.' Katie and Collin both have said that they'll buy their own when they are old enough.
My top 10 favorites in the Prismacolor line are: Slate Blue, True Green, Apple Green, Rhodamine, Deco Yellow, Lilac, Mulberry, Scarlet Lake, Deco Blue and Ballet Pink. In that order.
I am working on designing a give-away bookmark but haven't found the perfect idea for it yet. I'm sure it should incorporate both Periwinkle and Paisley though :)