A few weeks back, we discussed The Beatles' Christmas Album - a rare collection of recordings made by the Beatles exclusively for their fan club each year between 1963-1969. (The 1965 record - which was never sent to American fans - can be seen above).
Someone was nice enough to post all the records online here, including a handful of session outtakes that I've never heard before.
They are well worth a listen for any Beatles fan - especially the ones from 1966 onward, when things start to get even more experimental and creative.