As changing couple of ingredients or spices can give you a new taste in the same recipe, playing with same primary bead but changing the findings or using different complimentary beads can give you new designs for your earrings (and necklaces). That's what I tried when I was playing with different shades of Amazonite recently.
The earrings below have same circular Amazonite bead as the main bead. I have used a blue Swarovski bicone, a crystal studded separator and leverback earwire in one, and small round Amazonites with silver beadcaps and flat fishhook earwire in second. As you can see in the picture, one is elegant and the second one looks more rustic.
In the earrings below, I have used Aquamarine irregular rectangles as the main beads and accentuated them with different color and shapes of Amazonite. In the first earrings, using four Aquamarine rectangles together with round Amazonite at the end gives it a shorter look but in the second earrings, separating the rectangles with small round Amazonite beads and using Amazonite briolettes give it a taller look perfect for a long neck wearer. As you can see, changing the pattern in which you use the same beads can give you a unique design.