How do you get each secret moshling on moshi

roxy- secret code hobbididance
Lady goo goo-complete moshi mission 1
Blingo-buy busters lost moshling book and use the code at the back of the book
Dustbin beaver-subscribe for 6 or 12(you will have to pay) and soon after you will get an email with the code for trashy tulip(seed for dustbin beaver)