"It's my bestselling jewelry."McDonald's first collection wasn't a guaranteed success.When fashion stylist Kim Stern saw the line, which featured long, glamorous strands of Swarovski crystals, she told McDonald to "bring it down a notch."Looking back on it, McDonald agrees that the styles were "way too much for Calgary."So, she focused on more contemporary jewelry and launched the Uber collection.And she hasn't looked back since.With her jewelry selling well and her studies to obtain a Master's degree from the San Francisco Institute of Architecture underway, McDonald is busy these days.But that's not stopping her from coming up with new ideas.Her latest venture has her teaming up with a Montrealbased bag designer; she draws the patterns and he manufactures the clutches and totes.Some of their creations, which are made of Italian leather, are already in stores and for sale online.The styles range from the demure, such as the white and beige East Hampton To