Layer masks are wonderful things. This pattern reminds me of when I first learned how to use layer masks. I opened a co-workers file to edit it and I was like "the eff?" Luckily she set me straight and I haven't looked back!
Anyway, I figured since the topic was so girly I should not spoil it any do something gross/obscure. So here's a pretty butterfly pattern!
And here's the cooler version. Reminds me of my middle school years.