There is nothing like right or wrong with such wristlets. You can make as many you want and in as many styles you want. The easiest way to go is to collect all your old jewelry and them reassemble them in such a way that it can turn out to be a nice wristlet. You are not at all required to be blessed with technical knowledge or any such special skill or talent. You just ought to be yourself and think what you desire and surely what you design will be an amazing piece to look at. Also try to go with used CZ jewelry and assemble it as it won't even cost you much.