Really? You sure you wanna do this? Oh, maybe the Halloween is approaching, I almost forgot. Anyway, as far as I know, there are simply no natural and safe ways to achieve your desired effects, zombie eyes, horrible though. However, it occurs to me that there are currently some crazy special contact lenses on offer on some e-commerce websites, such as Alibaba and Amazon. You will see whatever you want over there.
Yes, there is the way to let your eyes look like a zombie. You could buy the zombie contact lenses which will make your eyes look like the zombie. At the same time, you could buy the zombie costume. You could get all these from the online stores. The price there may be suitable.
There is a method for you to have zombie eyes,which is makeup.The following is my suggestion for you.
Firstly,you need to find a picture about a zombie.There are plenty of choices ,The vampire dairy,or The Twilight Saga ,The walking dead ,etc,choose the one you like,actually,I suggest you choose the picture based on the vampire dairy,of which those eyes are charming not ugly.
Secondly, prepare some eye shadow and eye liner,then draw your eyes with the same type of the picture you choose.
Thirdly,you may need to wear some special contact lenses to make your eyes color look like a real zombie.