I got an email address that I thought was really clever, but it's somewhat hard to read.

$FirstName$L@stName.eu

People are a bit flummoxed at first, but then it clicks. The jury is still out on it.

Meanwhile my $FirstName.$LastName@gmail.com gets a lot of emails that were meant for other people with the same name, so I guess some level of obscurity is not inherently bad when you have a fairly common name.