Here are the things you need:
- One sheet double sided cardstock (I have used here paper from g.c.d. studios Ella Blue pad, but it's actually too thin to support card nicely)
- ruler, pencil and paper trimmer or scissors
- any embellishments you like - no glue!!!
For the other rectangle you have to do the same, just mirrored to other side.
I'm going to enter this card in CES challenges with the theme of blue!