Snake Effect

Could someone give me a pointer on how to create a snake effect, as seen in geometry wars for instance, where the head entity has x number of body segments that trail behind.
Hope you understand what I mean.

A small piece of demo code usind spheres would be greatly appreiated.

Cheers

This is the best

http://www.blitzbasic.com/codearcs/codearcs.php?code=1069

Thanks alot for the link, thats exactley what I was looking for. I did check the archives but didnt realise this demo was what i was looking for.

; Sorry ... wrong place ... added something to Robs original snake-demo and posted here by mistake