Get your own Krawk
Want a Krawk of your own? There's only two ways I know of to get them, and both cost a lot of neopoints...

Here's One way to get a Krawk:
1: Make sure you do not have 4 Neopets.
2: Get a Krawk Petpet. (This is VERY RARE)
3: Give the Krawk Petpet to one of your Neopets.
4: Go to your Pet's Quick reference page and click on the Krawk.
5: Then name the Krawk a name that is not taken already by another Neopet.
6: Go to the Fungus Caves, and you can feed your Krawk Petpet a special type of fungus.
After eating it, the Krawk will mutate into a Neopet instead of a petpet!
Costs all together: 500,000+ nps

OR:
An easier way is to buy a Mutant Krawk Transmogrification Potion and just give it to a neopet to turn it into a Krawk. It will be a mutant though, so if you don't like that then I suggest buying another paintbrush and changing it's color afterwards.
Costs all together: 250,000+ nps