Although I know you are also aware of this kind of paper flower, I still decided to take pictures on every step of the process. I just created a few and no idea when and where to use these flowers but will just keep it for the time being.
Cardstocks - preferably left overs so you have reason to use those bits and pieces of cardstocks scattering in your craft room.
Distressing tool - any tool you use for distressing
Distress ink pads or plain ink pads
Piercing tool and Scissors
Brads or Buttons or rhinestones et al For this project I used my own made brad which you may find the tutorial at http://scrapbookingwithjerosha.blogspot.com/2010/09/glittery-brads.html
Stickles or glitters if you like
Note: Fabrics or tulle or organza may also be used in making this kind of flowers =)
Of course if you have round diecuts like spellbinders or punchers or a cricut cartridge you may use BUT I still believe a not perfect round shape is the cutest for this kind of paper flower.