Introduction: Holiday Present Grab (Operation Style) Game

Picture of Holiday Present Grab (Operation Style) Game

These are instructions on how to make a game called Holiday Grab. It is like the classic game of Operation but in this version you are carefully lifting ornaments of the tree and presents from under the tree. … You can think of it as pretending sneaking a peek at some presents without your parents waking up.

It is a great project because it is simple to build and is a way to teach the kids some some simple electronics and can be built with mostly household materials.

Step 1: Gather the Supplies

Picture of Gather the Supplies

You will need hot glue gun, Cardboard, aluminum foil, tweezers, wire and AA batteries. You will also need a battery container and electronic buzzer which you can pick up at online from various sources.

Supplies
Cardboard

Aluminum Foil

Tweasers

Wire

Buzzer

Battery Holder

Hot Glue Gun

Soldering Iron

Step 2: Find Small Presents to Grab

Picture of Find Small Presents to Grab

Once you have the parts for construction will want to collect items to “grab” in the game. You can be creative here. Some examples are Lego, candies, buttons, extra Christmas lights, basically anything small.

Step 3: Download and Modify Image Template

Picture of Download and Modify Image Template

You need download and print the game design.

Image Source

Download SVG Template

This template can be modified using Inkscape (open source software)

Step 4: Trace the Pieces

Picture of Trace the Pieces

Once you have printed it take the items you have collected and arrange them on the board like I have done in the image. Trace, leaving extra space around each object then use scissors to cut out the shapes.

You will use this cutout as a template to trace the same shapes onto three pieces of cardboard.

Step 5: Cut Holes for the Items

Picture of Cut Holes for the Items

Now using the exacto knife carefully cut each of these pieces of cardboard.

Be sure you are cutting on a surface which you don't mind making marks, and be sure to be safe with the blade.

You can also cut a cavity to tuck away the buzzer and battery.

Take a hot glue gun and glue each of the layers together. But to not yet glue the tree image to the cardboard.

Step 6: Add the Conductive Layer

Picture of Add the Conductive Layer

The next step is to take some aluminum foil and security it with the hot glue to the top, then add the image -- being careful to line it up with holes underneath. We need the aluminum because it conducts electricity, which is what triggers the buzzer.

Glue down the aluminum then trim it.

Step 7: Cut the Holes in Aluminum the Holes

Picture of Cut the Holes in Aluminum the Holes

To finish the board you put slices in the aluminum and tuck it back.

You want to leave a ring of aluminum exposed, little flaps of aluminum make the game more challenging and more fun.

Step 8: Add Battery Holders

Picture of Add Battery Holders

Now it is time to make the circuit. For the buzzer to sound the circuit will will need to be completed. When the tweezer are not making contact with aluminum the circuit is broken. When it touches the circuit is complete and the buzzer will sound.

Start by gluing the buzzer and battery holder into the cavity we created.

Locate the wires coming from the buzzer and battery case. Connect the red wires, ideally by soldering them together.

Step 9: Complete the Circuit Through the Tweeters

Picture of Complete the Circuit Through the Tweeters

Now take one of the black wires and use a wire stripper to expose some wire, and solder it to the aluminum.

When you have it making a good connection further secure it with hot glue.

Now you need to create the grabber. The grabber itself is simple it is just tweezers but they need to be setup to complete the circuit when touching the aluminum. Start by taking a three feet of wire and attaching one end to the tweezers. You can wrap this in tape or use a shrink tube to protect the connection.

Next pop a hole in the game and put the other end of the wire through. Then solder the end to the remaining black wire coming out of the battery pack or buzzer.

Step 10: Play Test the Game

Picture of Play Test the Game

That is it! Now it is time to test your game. If you find it not working try testing the circuit at different points you might just have a loose connection somewhere.

Try creating different versions for different holidays.

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