Kaylee is adorable. And she had wonderful lines in both Firefly and Serenity
To me she was the essence of the ship, having wonderful adventures, and doing daring (kind of) deeds, while never breaking down.
She stayed happy and caring no matter what she was put through.
I think this design looks best on the blues, the greys, and the black! There is a white rim around the design, and the yellow was loosely meant to match the dark gold t-shirt, for other options!