hey i dont know if u r aware...but among girls nowadays..the new watch straps trending has a strap of normal cotton cloth, in fashionable colors..........mayb u can try that! with some punky funky colors like neon,tangerine n hot pink...or cool prints like zebra prints,leopard print n monochrome.that would b absolutely coool...as far as possibel try out some catchy fabric for the strap.....
Black shoelaces.
Duct tape