These avatars all involve your pets having a certain job.

For more information on pet jobs Click Here.

Get your pet a job as an astronaut.
Resign your pet's job as a Dish Washer.
Get your pet a Carnie job and collect it's income.

Have a Digital pet with a Hacker job.
Get your pet a job promotion from Lab Clerk to Lab Assistant.
Get your pet a job as a Politician.
Click "more details" on the Drama Queen job at the Job Centre.
Get a pet with level 50+ music the Karaoke King job and collect income.