Etsy Color Kit
https://www.etsy.com/listing/1428647539/eyeball-enamel-color-kit-realistic
Human Eyeball Printable:
https://www.dropbox.com/s/hlwpyvvmly81ain/human%20eyeballs.pdf?dl=0
Diamond Sanding Stick:
https://www.etsy.com/listing/614548329/diamond-sanding-strip-with-sanding-stick
Enamel Grinding Kit:
https://www.etsy.com/listing/830188235/grinding-polishing-kit-for-finishing