Most altcoins have done very poorly. You can see the list of relatively successful ones here. There isn't a country coin that's got a market cap over a million. I would say there hasn't been a success story.
A few projects have done this (although more recently with EOS and Ethereum). The only notable one I can remember off the top of my head is Clamcoin:
Every person who had Bitcoin at block 300,377, Litecoin at block 565,693, or Dogecoin at block 218,556 was given ~4.6 CLAM.
This has spawned a few digging services over the years, where you can upload old ...
I remmeber there was BitcoinTalkCoin - the one with BCC ticker, in fact there were few sharing the same idea). They successfully "airdropped" the coins to BTT users, registered before the coin anouncement. I received some myself :) although it was pennies, you can say that the mission was accomplished.
If you have Zaza and BTC in one wallet it's suggested that you first send your BTCs away (because they're more precious and the BTC client is more trustworthy) then your Zazas so that the Zaza client can't steal your BTC.
I have two answers:
quick answer on how to airdrop 1,000,000 alt-coins:
put it onto accounts in exchanges or cold wallets or whatsoever, and wait for the costly infrastructure to establish, so coins can be used. If it shall be decentralized, wait even a bit longer, cause it seems highly unlikely, that these countries themselves are willing to provide the ...
From what I can gather, there were a bunch of people who were able to claim auroracoins through the airdrop using SMS/Facebook based on various forums and social media outlets. In that sense the airdrop was successful. But who knows how many of the airdrops were legitimate. For all we know, most of the airdrop might have gone to the creators of the coins so ...