Best just to but it on a hidden encrypted volume inside a hidden virtual machine that has encrypted archive file that doesn't seem like a archive file 
I've better: LiveCD system accessing physically encrypted volume (external hard drive with fingerprint recognition ?), inside of which there is some trap files plus a TrueCrypt volume named "Pr0n.zip" containing a BtrFS filesystem, inside of which there is a volume with some random porn pics in it "to make sure the kids/woman don't find out" plus a hidden volume with a read-only wallet.dat which name has been changed to Thumbs.db.