And I'll Form The Head: Wig Review
This wig is one of the only perfect Shiro wigs on the market. The grey fibers are short, just like the characters buzz cut, but they aren't too short so your natural hair doesn't show through, even on larger heads or people with a lot of hair. The white portion did need minimal styling out of the bag, as it tends to get a bit mixed up with the nearby black fibers, but it wasn't anything some hairspray couldn't fix. The bangs were a tad long on me, given I have a short forehead, but it looked amazing and having all three colors that Shiro has in his hair during season 1 and 2 was worth the bit of work. The wig is one of the most breathable that we own, and I only had to pin the back portion of the wig down due to the short fibers not totally covering my hairline without some help from my dear friend bobby pins. It's no wonder this wig sold out so quickly!
We would recommend this wig for any Shiro cosplayer. The wig, being only $30, is much cheaper than any method of splicing three wigs available. It's less messy and neater looking than dyeing, and the slight difference between fiber texture is the cherry on top for this amazing wig.
http://www.thefivewitswigs.com/shop/wigs/ill-form-the-head/
(Photo credits to Matty Sama Photography on Facebook)