Second hand stores are a great place to find material for cheap and personal diys. I have been collecting and buying embroidery thread now for a while in every color. Tassels are easy to do from these threads and Pinterest is filled with great instructions.
Then it is just up to your own taste how to combine colors and shapes…I usually go with the flow.
Taking photos of my designs outside in the nature with my Canon Digital camera is one of my dear hobbies. These pics from my green and turquoise neckpiece are from the beach.