The Iris Quilt Pattern is a great way to use up with you already have in your stash - it works with fat quarters, a jelly roll, or scraps.
The fat quarter and jelly roll options are both strip pieced, so this quilt comes together surprisingly fast.
The pattern has instructions for baby size (39" x 39"), lap size (59" x 69"), and twin size (79" x 99") quilts.