The hand thrust up from the grave is a staple in most zombie movies.

The hand is propelled by compressed air and explodes upward when tripped.

The trigger in this case is from a PIR motion sensor which I have showcased in another instructable.

Essentially when someone passes in front of the tombstone the hand will appear to pop out of the ground.

This will show you how to create a this kinetic zombie graveyard prop for Halloween

You can hear the air compressor running in the background during the test.

Step 1: You will need

Before you begin you will need to reference my PIR motion sensor instructable and you will need to reference an instructable on creating Styrofoam tombstones on this site.

You will need an compressed air source (an air compressor)
An air line
A 3 inch SEWER cleanout from Home Depot
A rubber glove
And an air solenoid(12V model from a HVAC supply store)

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