The blingy square is a sticker from Michaels. There are several sizes nested together.
Here is the sketch for you. I hope you'll play along. :)
Remember, you can get all the details by visiting the MFT Blog and the MFT forum on SCS (look for the most recent WSC thread). You'll need to upload your card in the SCS gallery using the keyword shown on the sketch. You will have the chance to win up to $20 in MFT money. One winner is chosen at random each week!
Go get sketchy with MFT!