If you've got the money and the inclination you can paint your pet or petpets different colours and themes. The following are what I consider to make good 'spooky pets' with a goth or cyber-goth look.

If you're looking to change the colour or species of your neopet I suggest you have a look at this site, it can be a useful way to determine what colour and species is best for you. Use the drop down menus at the bottom to choose the colour, species and pose of the pets you wish to see.

Neopets Colour/Species Guide

You can also see all the paintbrushes here:

Complete list of paint brushes

And a list of all Petpets using paint brushes (I know of no complete plain Petpets list):

All Petpet colours

You will probably want to get your hands on one of the following in order to make your pets look the appropriate way:

Lost Desert paint brush

Electric paint brush

Halloween paint brush

 

Glowing paint brush

Skunk Paint Brush

Faerie paint brush

Secret laboratory map pieces (for random chance Robot colours)

Transmogrification potion (for mutant pets)

 

 

   

Black Petpet paint brush

Halloween Petpet paint brush

Robot Petpet paint brush

Mutant Petpet paint brush

       

 

Gothy pets

 

 

Cyber-gothy pets

   

Gothy Petpets