So in this video from Youth.sg, I was using gelatin and glycerine for the skin. And I use food ingredients for DIY blood. One thing I forgot to mention, in order to secure the gelatin on the skin so that it stays longer, you can seal the entire surface area, especially the edges, using eyelash glue such as DUO.
The second video features a technique used by regular professional makeup effects artist using silicone and alcohol-based products.
The full article by Youth.sg is available at http://app.youth.sg/Home/Articles.aspx?id=2108
So here are the videos direct from Youtube. Enjoy!
Sincere thanks to Wan Munirah and Youth.sg for this feature!