Making up a password on the spot is difficult, especially one that you might give to a client. To avoid it ending up on a post-it note attached to a monitor you need one that is easy to remember yet also meets a basic minimum level of security. After doing this manually for years I wrote a password generator to do the work for me.
How about: Modern-ish Javascript is required for password generator
Note: If you would like to copy the password without the symbol you can but be warned that this password generator has a maximum of {:InsertAveragePasswordCountHere:} combinations and by removing the symbol it drops that down to {:InsertBasicPasswordCountHere:} combinations.