Conversation so far:
What are the associate pythons?
Several people have been accorded unofficial "Associate Python" status over the years.
Who are the associate pythons?
Neil Innes and Carol Cleveland.
What Monty Python films or shows did they work on?
Neil Innes is the only non-Python besides Douglas Adams to be credited with writing material for Flying Circus.
He appeared in sketches and the Python films.
What were Carol Cleveland's contribution to Monty Python?
Cleveland went on to appear in about two-thirds of the episodes, as well as in all of the Python films, and in most of their stage shows.
Does it mention if Adams is the Hitchhiker Guide to the Galaxy author?
CANNOTANSWER.
What films did Neil Innes work on?
Idle's straight-to-DVD The Rutles 2: Can't Buy Me Lunch.

Question: Are there any famous sketches Innes wrote or appeared in for Monty Python?
Self-contained rewrite: Are there any famous sketches Innes wrote or appeared in for Monty Python?