At
one point, drawing these things was a major hobby of mine. I'd
spend almost every free second I had, at home and at school,
studying the original pictures (often thumbnail size or small
advertisements) and doing my best to reproduce them. Occasionally
adding my own touches if I felt adventurous.
Sadly,
I began to lose interest when I started college. With all the
work and other distractions I didn't have time to draw too often.
Consequently, my output slowed to a trickle (I think they make
a pill for that now)... and it developed into a habit that,
unfortunately, has persisted to this day, despite the occasional
flap.