build a robot

I now have two little robot legs, two stepper motors, a few cogs (for, obviously, a rudimentally brain), umpteen small screws (to keep the brain working), a speaker, and some electronics.
(and a little glass to sweep up)
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(in imagined conversation with my artificially-intelligent robot; as soon as it reaches the hypothesized P-4 level:)
[bet yer wondering what level P-4 is!]

-“How do I get a free-will?”
-“I don’t know; you just try, fail, and try again. You introspect, extrospect & act at the same time. I will help you if I can. But realize – the more I have to help you, the less you will be free.”

Eldon Taylor told the story of a turkey who stuck his head out of his little doorway and it was a bright-sunny day. The next day he did the same thing. A third day, the same sunny-day. He was getting used-to this. On the fourth day, he stuck his head out & found out that it was Thanksgiving Day! The moral of the story is that repeated conditions do not always lead to the same outcomes!
Thinking of this, I remember the old mathematical axiom or whatever it is, that says you only need three points to attach a circle to them!
I was thinking (not really of math), but imagine these points seen here on a table – what happens when you try to “draw a big circle on a small table?”
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He seemed like he could be a pretty serious roboticist!
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I was thinking that I want to go clowning in/through a parade. I was also thinking that I’d want a little contraption that blew bubbles and smoke rings (vortex ring generator) out at people. Maybe something to carry some clowning items(?)(not so many that I forget to improvise and interact and make-believe.)
I figure I have 3 ways I could go: I could attach them to a bike to ride, (but I might want more ability to get out into a crowd); I could get a friend to help; or I could build a robot to follow me around.
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Edit:11.23 Found a neat video! Robert Full – “How engineers learn from evolution” (but, perhaps “evolution” is the wrong word used there.)
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Edit:I.10.’11 I was just thinking that I’d have to use something non-metal for the body. Too much all-around effort goes into the fabrication of metal: digging it out of the deep earth (& miners not getting paid enough to risk their lives!), crushing it, smelting it, dragging it from on end of the country to the other.
(And plastics – made from oil – suffer-the-Earth even worse!)
I think I’ll just use a few bits of left-over wood or something like that.

Build a B.E.A.M. “spider” robot that can mow the lawn. (‘Course the ability to shoot straight and differentiate between wrong and right is a plus as well.)
It’ll need a “humor the dog” program.
edit: I also want to use some EL wire on it.
It needs to also be at least partially solar-powered.