Developer CrowdStar has released a lineup of just those kinds of pets into the game. You can pick up a Psychedelic version of the following pets: Cat, Siamese Cat, Dalmatian, Parrot, Duck, Pig, Hamster, Bunny, and even Turtle.
To make your choice one about purely aesthetics, each of the different pets costs the same amount of Facebook Credits – 76 to be exact, and they all sell for the same price as adults (if you choose to get rid of one, that is), going for 2,280 coins.
Where the pets differ is in their time to adulthood and in their feeding time frequencies. For example, the Hamster will grow to be an adult in four hours, and requires a feeding at the same time, while the Siamese Cat takes three days to become an adult, but must be fed every eight hours.
If you’re in the mood to add a bit of color to your pet collection, take your Facebook Credits over to the game’s page.