Look for patterns that have no borders or large matching sashing. Think Turning Twenty for easy and many others to make them more complex. I have a bunch of patterns that use one yard of 5 different fabrics. Just add more to make more blocks. The following store has these patterns so you can see pictures on their website below, scroll down for Mustard Seed patterns.
http://webstore.quiltropolis.net/sto...oks+&+Patterns