This bracelet started with a hand-painted ceramic bead from my LBS and then I used gold cord and size 8 aqua seed beads for the bracelet. The button is brown coconut from Michael's - they come in a box in all different shapes and sizes for like $3.99 which is perfect because you get enough buttons that you could make 20+ bracelets and the neutral brown color goes with pretty much everything. There's another box where the coconut buttons are all different jewel tones (emerald, ruby, sapphire, etc.) with a few brighter pinks and greens thrown in.
This version started with a Kazuri bead in swirls of denim blue and lemon yellow. I added denim blue cord, orange size 8 seed beads and a textured copper button from Second Surf.
I still don't think I got the loop size completely right on the first bracelet - it's a little tight. But the orange one is perfect.