I don't think include any "dot" in the character is a good idea since people will write the character somewhere.
Here is my design, a vertical line with a spiral. and looks like "b" in a circle, and will be very easy to write.
Gee... that looks familiar... where did I see that... Oh yeah. Back in the first couple of pages:
[facepalm]. Wow. This brings back memories of July 2010 when this thread was started almost a year ago. People think they're clever by adding a new curve or slash to a "b" or extending a previous design with an extra loop or rotating. Wow. That's all I can say.