This also peaked by interest, as well as the general concept or royalty investing. But so far, I haven't found anything that seems worth it. First, none of the royalty are guaranteed, so you could buy something that may or may not get the same returns year in and year out. Some of the royalties are small slices of certain songs, like a small writer credit - so you are not clear on exactly what is being bought with out more research. As an example there have been songs like jcole + kanye west workout / workout plan. There were a bunch of songs, three may be considered well known, but you are getting a small slice from one writer in that case. So you really need to dive into what is being bought. Best case I can see on the songs is that maybe one day some movie or tv show uses the music and you get a nice bump in earnings, or there is some popular cover in the future. 100k a year royalties, not guaranteed might make sense at a million which gets you a 10% return which is decent, but this trades more like a bond. Your resale may not be great if interest wanes in this royalty exchange and you can get more stable returns in the bond market in vanguard (trading actual bonds not etf's). I like to invest in what I understand and what is simple, this just so far is not. I do use Listerine zero (less intense / alcohol free) which I'm not sure counds in this stream. I haven't bought the original in a long time, since it has no flouride.