To this day I think dogecoin still holds the crown of best advertising campaigns of any altcoin, and that's kind of sad since there are much bigger coins now and it wouldn't be that hard to do.
Sometimes you don't need to be totally original with your marketing strategies. You don't need to send people to the orbit to catch people's attention.
Simple methods are often the best - Bitcoin Pizza was good example of good marketing, people talk about this event to this day, there is even Bitcoin Pizza Day celebration.
You know what altcoins are not advertised in real life (billboards on the streets, promotional events, commercials on TV etc.)?
For the same reason you won't see Lamborghini or Ferrari commercials on TV.