As someone pointed out in the comments today, I should probably not be allowed anywhere near sharp things. Because the first thin I think is; how can I make it look like an injury.
Today I thought I would show you how to re-create this special effects injury with three different products. Depending on how close you are to a special effects shop or your budget, you should hopefully have one of these three at hand. I thought it would also be quite fun to compare the three so that you can see exactly how they compare against each other.