It is ungodly hot outside, so it seemed like a pretty good day to sit in the basement and play with my sewing machine... and on days like this I tend to go for Crazy Quilt blocks, which look awesome, are super easy, and require very little actual measurement (jackpot!). You can use these super interesting-looking blocks in typical things like quilts, but they are cool enough to stand alone in a throw pillow, wall hanging, or tote bag.
Step 1: Supplies
Cutting mat & Rotary cutter (but just plain ol' scissors will do, as well)
Basic sewing gear
Lots and lots of fabric scraps, cut into 2" strips
It doesn't matter what sort of fabric you use in these blocks. If you're just starting out, I'd stick to cotton, as it is the easiest to deal with. But I've done these out of silks and velvets and they turn out awesome (but definitely not for the beginner!) Get a good variety of fabric, so you have lots of diversity in your square. And just remember that you only need tiny little pieces of fabric, so it's a good way to use up scraps from other projects, or to trade with a friend.