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What you will need
* 1mm styrene
* 0.4mm styrene
* 0.8mm styrene rod
* plastic cement
* Xacto knife
* sandpaper

Step 1.
I started with this. 1mm styrene cut into a shape like this, and 0.8mm rod cut into three pieces ( rods can vary in length depending on preferences) cement in place as shown in steps 2-4

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Step 2.
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Step 3.
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Step 4. Shifter stick should look something like this.
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Step 5. I had to improvise a bit here. 1mm styrene cut into two 1.5mm boxes.
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Step 6. Cement boxes together to make a 1.5x2mm box. Smooth with sandpaper if necessary
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Step 7. Using 0.4mm styrene make a 6x4mm rectangle. Cement 1.5x2mm box to the 6x4mm rectangle offset towards the front. Cement shifter stick to box
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Step 8. Cut 0.4mm styrene into these three shapes, and cement in place as shown in steps 9-11
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Step 9.
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Step 10.
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Step 11. All Finish
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