This is my first attempt at a very small biped, and
as you can tell from the pictures, It's pretty tiny. It 
stands  about 2 3/4" tall, uses fewer than 50 pieces,
and weighs just over 2 ounces. It doesn't drag its 
feet, and it moves at a decent pace considering its 
size. Building it was fairly challenging and I had to 
find interesting ways of connecting pieces, but I think
it worked out pretty well, and I learned a few things. 
Hope you like it!