Pretty difficult to pick from the hundreds and hundreds of fan works and remixes that I’ve seen on the internet over time (let alone remember all of them), so here’s a few that immediately come to mind. I also can’t get the embeds to work so we’re just going to have to link to them.
This first is an advertisement for Kanye’s new album as if it was a gangster rap album (spoiler: it’s not) and he had a street team to work it’s promotion from the ground up. It’s pretty vulgar, but also hilarious.
Chris Farley Interviews Paul McCartney
A classic. Farley parodies the stereotypical obsessive fanboy.
I’d hesitate to call this a “fan work”, but it’s short and hey, close enough.