Interesting strategy! Maybe a fat stack of paper wallets with too little of value to mess with right now in a fireproof safe....Hahhah Problem is you would get chewed up in fees if you tried 0.001 BTC. Maybe Nano Paper wallets each worth 1 Nano right now. I would say EOS or STEEM but it sort of cost to create accounts.
Once again sorry about the NuBits thing. It busted my ass too and at the time it seemed like a better option than Tether because it appeared that would break the peg at some point which it did but not too terrible. BitUSD is an issue because you have to keep buying BitShares as collateral if the price goes down and SBD has had a hard time keeping the peg. Hopefully TrueUSD can hold up.