I remember these short cartoons from my childhood...they were very simple in terms of animation, with very stylized characters and very limited backgrounds. Foo-Foo was based on circles, and had a bowler hat (circular crown, and very curved brim). His antagonist Go-Go was about 2½ times his size, triangular in shape with the bulk of the body black to provide the beard of the traditional pantomime villain. Arms/legs were lines, and no dialogue was spoken.

They were featured in the (British) "TV Comic"; but as far as I know the only home movie exposure they got after their TV career would have been the 8mm Sound films (200 ft one reelers) issued by Mountain Films. I had a couple, I'll have to go look. In one such, Go-Go replaces Foo-Foo by a computer which is duly sabotaged by having booze poured into its input slot... It burps and outputs a card with "PARDON" punched on it. This was the film that the late Denis Gifford in "The Armchair Odeon" said had a strange apparent moral "If you want to get a head, get a thick one".

Hunt them out; they were undemanding fare but strangely entertaining as much wordless comedy seems to be.