I'm currently working on my Color Sets Line, in which each outfit contain's only one or two basic colors and black jeans. I've done six so far.
A Sip of Champagne: For HeatherThomas's Birthday Party
Bright Red Plastic
Black and Off-the-Shoulder
Pink Is Not Girly
What I Should Have Worn for St. Patrick's Day
I'm Made for Grey Skies
I'm hoping to do at least a dozen, if I can think of that many shades/colors/metallics. But hey, I've already done 6 sets with only 2 of them colors directly from the rainbow.
It's totally fun to make! Most normal people wouldn't wear all of one color, but on a set it looks great and the black jeans I always use make sure that it's not too matchy-matchy. Try it some time.