For anyone who wanted and missed out on Cinderfella and Gilt By Association, I have a dupe for you, BUT... it depends on if you got shadows from the Red She Said collection last year around the same time Style Black released.
If you have Danger Zone ( black, silver stripe, red) and one of the shadows with the gold/copper stripe ( I have Inter-view), and a wetting agent ( Fix +, Mixing Medium, etc) you'll have all you need to dupe these two shadows.
I took the dome ( I keep these, never had a good reason to until now) off the shadows and used a fluffy brush to sweep the black from Danger Zone, and the glitter stripe of my choosing (gold/copper for GBA, silver for CF) into the dome. Using a fluffy brush will do less damage to the shadow, and keep you from scraping too much.
Try to sweep more glitter than black into the dome. Mix them (dry) in the dome with the brush that you'll apply with (a 239 or 239-like brush), then load the brush with the mixture. Wet the brush with the liquid of your choosing, apply, and BAM you have your Cinderfella or Gilt By Association!
My bad if I'm late. I wore my Young Punk and Blue Flame over the weekend and I was thinking that maybe I should have gotten the other two. Then I had a lightbulb moment and decided to see if my experiment would play out, and it did! Hope someone finds this useful!