This week is an extremely simple craft that anyone can do. All you need is a sharpie and some Mod Podge if you want a good waterproof gloss (I do this so that I can put mine in the garden!)
I would advise sketching your pattern over in pencil first before using sharpie unless you are confident! Also, be sure that your sharpie is dry before you apply the Mod Podge otherwise it will smudge your wonderful pattern!!