Hexagonal "yantras"

When I read the comment of gauriji and looked at latAji's drawing
http://www.ikolam.com/node/249?p=668
it occurred to me that I must study the building of this carefully and the result is
this rangOli. I have given six drawings here. They have one, two, three, four
(at the top), five and six dots (bottom pictures) at the edges. The number of
independent lines is equal to the number of dots for even number of dots and equal to
the number of dots plus one for odd number of dots. Two colours for the first two,
four for the second two and six for the bottom pictures. I used different colours
to distinguish these. You may also note that three rows at 120 degrees have
missing lines in the centre. Now you know how to draw these for any number of
dots. You can put any magic charm in the centre and earn puNya and wealth
None for this pApi

(The purple and blue don't show that well in the bottom picture. The purple is
thinner than the blue and connect the top dots.)

Regards! - mOhana