I got some really dumb cryptos in my pocket. Most of these are coins that I mined back then I was testing mining software and getting my first mined coins. I got lucky with Dogecoin and sold for 0.5 BTC, that was a steal.
I got MYR, DGB, Catcoin, QRK, Fluttercoin, Fantomcoin, RPC, NET... fuck, I got so many coins, and it's a couple bucks worth. Im just holding and looking for the typical random pump to dump.
Again these coins are just mined, so they are not really dumb investments, if you dont count mining them as dumb..
I did bought MazaCoin back then tho, I was a noob lol. I lost them on Cryptsy anyway.