I saw this card design on the pink petticoat blog by one of their very talented card designers and loved the shape.
My card is a bit of an experiment, I just tried it from the picture and it's a bit too narrow at the top which means it opens up too far when it's standing. I love the design and will modify if I make another. I've used the gorgeous 'In the groove' dots paper from The Shabby Shoppe to cover the black card, the flower is from the same set which I printed and cut out after adding a black border. The flap at the top, the handle and centre of the flower are cut with nestability circles. The sentiment is doodled with white and clear glitter gel pens. TFL.