How To Make A Wickedly Scary Gash On Your Arm In Seven Easy Steps!

Looks totally real, doesn’t it? In fact, it’s the artistry of one of the students at the Amazing School JUR’s special effects table at Design Festa! I opted for the ¥500 standard slasher attack, but you could also sign up for the ¥1000 “X-marks-the-psycho” gashes or a gaping wound that looked like the velociraptors got loose in your room last night.

Here’s how he did it!

First, trowel on the 3-D goop that makes the ultra-realistic edges of the wound. This stuff dried into a silicone-like consistency.

Before the goop dried, he carved an irregular line down the middle and sculpted ridges on the edge of the wound.

Then the outside borders of the goop were smoothed down so they blended with my skin.

Next, fake blood was painted into the slash.

After that, “bruising and inflammation” were pounced on with a soft brush around the gash.

Finally, the finishing touches of shiny red to keep it looking like it just happened!

It lasted all day – until I peeled it off before I went to bed – and I accidentally scared a few people because I forgot I had it on!

Jonelle Patrick is the author of the Only In Tokyo mystery series, published by Penguin/Intermix.