This should be similar to the last picture you've emailed us:
sh = new Shape(new ElementTemplate[]
{
new BezierTemplate(0, 10, 0, 0, 0, 0, 10, 0),
new LineTemplate(10, 0, 90, 0),
new BezierTemplate(90, 0, 100, 0, 100, 0, 100, 10),
new LineTemplate(100, 10, 100, 40),
new BezierTemplate(100, 40, 100, 50, 100, 50, 90, 50),
new LineTemplate(90, 50, 70, 50),
new LineTemplate(70, 50, 70, 100),
new LineTemplate(70, 100, 45, 50),
new LineTemplate(45, 50, 10, 50),
new BezierTemplate(10, 50, 0, 50, 0, 50, 0, 40),
new LineTemplate(0, 40, 0, 10)
}, FillRule.EvenOdd, "Balloon");
I hope that helps,
Stoyan