It let's you copy the npc character's clothes (but not held items) you just click on the t shirt on the top right corner and click on the npc charcter. hope this helps!
use the costumizer tool and copy it from the other spies
just find someone wearing it and and click costumizer and click the scarf
You can buy at least one dog costume in the store with credits. Contrary to other situations, you cannot copy purchased costumes using the Costumizer.
Use the costumizer (the t-shirt symbol) and click on one of the agents inside the Headquarters building on Spy Island.
On the bar on the upper right side of the window, along with your Item Bag, Maps, Controls, and Costumizer.
It is just a Costumizer feature and easily changed back. (see related question)
Since it is not currently included on a costume for sale, you would have to locate someone on the island with that appearance and use the Costumizer to copy it.
Unless it is for sale at the Store, you would have to get one with the costumizer. (Did not try Shark Boy on Shark Tooth Island.)
You can use the costumizer to exchange or remove outer garments. If you have on a purchased costume, use the item bag under "purchased items".
Use the "Costumizer" feature to copy (almost) anybody's costume: Click the "t-shirt" icon at upper right, then you click on the person you want to copy from. (Clothing, hairstyle, etc.) If you want to keep it, click accept. If you don't want it, click cancel. You can use the costumizer anywhere on Poptropica, except on pre-recorded scenes or on Big Nate Island.
There are two ways : # Use the costumizer on a nerd you encounter, and copy his appearance. # Make a semi-permanent change to your appearance using the cellphone on Nabooti Island. Dial 1337 on the phone. Caution : the only way to revert your appearance is by randomizing, or using the costumizer somewhere else.
Dialing "411" gives you a "Brain Hat". You can change this to any other hat or hair using the costumizer again.