I make a LOT of mashups. Like, an inexplicable amount for an inexplicable reason. I made an album of clips from 21 different Hozier mashups. I even made an entire album of mashups based on tweets, one for every day in July 2015. Do people even like mashups anymore? Didn't we get tired of them when that Bootie guy came in and killed the game? Or when Girl Talk started playing college campus festivals. I don't know. But it doesn't matter! I make them because they're really really fun to do and I only release them because having an unreleased stockpile of things I put effort into is a lot stranger than having a bunch of songs that only work anachronistically . Who am I, Prince?
These are just my favorites, but all of them are on my Bandcamp, free to download.