Made by Cadbury's. Old British television adverts for the chocolate featured strange animation with lots of chocolate people, and the catchphrase, "Ooooooooh, that Friday feeling - you just can't keep it in!". A good thing to yell on Tuesdays.
There was a Crunchie ice cream bar on sale for a while, I don't know if that's still around. It was the basic chocolate with a vanilla ice cream centre, but the ice cream had lots of little honeycomb balls spread through it.