The afro is a fluffy ball of hair with vertical stripes of every hue of the rainbow (except for purple) appearing on the afro. In Nintendogs the colors seem to blend in with each other while in Nintendogs + Cats the colors are clearly separated and defined from one another.
Nintendogs:"This is the headgear of choice when you really want to stand out in a crowd!"
Nintendogs + Cats: (NTSC): "The headgear of choice when you really want to stand out!" (PAL): "This colorful wig will make your pet a star at any 60s disco night."
How to Obtain[]
In Nintendogs, the Rainbow Wig can uncommonly be found on walks as a present. It sells for $20 at the Secondhand Shop.
In Nintendogs + Cats, it can be obtained from Mr. Recycle if the player has enough materials and can be sold for $12.