It changed shape from a cigar shape to a circle and back again.

After reading so many of your sightings sent in, I remembered my Dad and I standing in our yard and Dad says "Look at that thing, it's changing!"  It was indeed changing shape, from a cigar shaped to a circle and to a cigar shape again.  It appeared to be "squirting" along, like the shape change was part of it's locomotion.  
This was a clear sky with a few high clouds.  The thing appeared to be metallic, but it didn't show the sun reflecting off of it like an airplane.  It appeared dull.  Was going pretty fast, but not so fast as to make it difficult to see.  Jets now go faster than it was going.  
Dad mumbled something about a UFO, but I think he was joking.  
I was 10 or 11, and am 35 now.  I didn't think any more of it untill I read that other people had seen UFO's that change shape!  
Thanks for all your time and dedication! ((name deleted))
Date is approximate.  PD