Extend the toy light saber and add the yellow tape around different points on the light blade of the light saber. This will help when you are adding effects later.
Set your camera on the tripod.
Lock down your tripod so it doesn't shake or move and film your scene.
Open up AfterEffects. Go to "File>Import>File" and import your footage. Go to "Layer>New>Solid." In "Color" choose a white solid by double clicking on the color swatch. Press "Make Comp Size" and click "OK." Make sure this clip is on top of the footage.
Select the white solid layer and press "T" on your keyboard. Drop the opacity to "35%." Select the "Pen Tool" from the "Tool Panel." Make a mask around the blade by clicking on the outlining points of the blade.
Type "U" twice to reveal "Mask Path." Click on the "Stop Watch" icon next to this. Select the "Selection Tool" in the "Tool Panel." Move the "Time Indicator" up a frame and move each of the pen tool marks to where the blade has moved. Keep doing this for the length of the clip.
Duplicate it three times by holding down "cmd + d" on Mac or "ctrl +d" on PC. Select all the duplicate layers and go to "Layer>Pre-compose." Then click "OK."
Select the first white solid within this composition and type "UU." Twirl down the mask drop-down menu and change the "Mask Feather" of the first layer to "5%," the next one to "15%," the third to "30%" and the last to "60%."
Go back to the regular composition. Go to "Effects>Color Correction>Hue/Saturation." Turn on "Colorize." Change "Colorize Saturation" to 100 and "Colorize Lightness" to -33.
Open up Photoshop. Go to "File>Open." Find your footage and press "OK."
Go to "Window>Animation." Go to "Layers>Layer" and press "OK."
Select the "Brush Tool" from the "Tool box" and paint a stroke. Twirl down the drop-down menu next to the paint layer. Click on the "Position" stopwatch to add a key frame. Move further in time and move the stroke accordingly.
Twirl down the drop-down menu next to the paint layer. Click on the "Position" stopwatch to add a key frame. Move further in time and move the stroke accordingly. Go to "Layer>Layer Style>Outer Glow." Enter "6%" for the "Spread " and "133 px" for the "Size."
Open up GarageBand. Drag the footage with the effects into GarageBand.
Click on the "Loop Browser" at the bottom right to add sound effects or music.
Press the "Record" button to add sound effects of your own.