Turning twenty is a great pattern to buy. It has been out for a long while, can be made in various sizes. It calls for fat quarters but you can use what ever fabrics you have in your stash. It looks like an easy one to just copy but if you are a new quilter get the real thing its a lot easier.
another way to go is your public library or buy a magazine. There are easy quilting magazines out there, and you end up with several patterns for the price of one.
Turning twenty has come out with a new variation called turning twenty again.