Text Effect (Outline + Mirror) Gimp

This is the result:

Part 1: Outline

1. Create a new document, the size of it doesn't really matter. Mine is 800x600 pixels.
2. Select the text tool from the Toolbox and choose a font of your choice and write anything you want. I chose the “Liberation Sans Bold” font, fontsize 45.
3. In the “Layers” window, right click your new text layer and choose “Set layer boundary size”. Set the width to 600 and the height to 87. Then you click on the “Center” button. To perform the task and close the dialog, press “Resize”.
4. Now duplicate your layer (Right-click and choose “Duplicate Layer”) and rename it to “White” (Double-click and write). Right-click the layer and choose “Alpha to selection”.
5. In your document window, click “Select” and then “Grow...”. I chose 2 pixels growth (but that depends on what font size you have).
6. Now in the same window, click “Edit” and then “Fill with BG color”, in this case it should be white, if it isn't change it to white and redo the step
7. Duplicate the layer and rename it to “Black”. Right click the layer and choose “Alpha to selection”.
8. Now you'll grow the selection 2 pixels again. Click “Select”, in your document window and then “Grow...”.
9. Click the “Edit” button and then “Fill with FG color”, it should be black or else change it and redo the step.
10. Now change the layer order, The original text layer on top, second should be “White” and third “Black”.

1. Duplicate each one of your layers (Original text layer, “White” and “Black”) and make them one solid one called “Mirror”.
2. Do this by duplicating each layer, put them next to each other on top of the three original ones and then right click on the top one, choose “Merge down”. Do it twice and your done, don't forget to rename it though.
3. In you main document window, click on “Layer”->”Transform”->”Flip vertically”.
4. Now choose the “Move Tool” from your “Toolbox” and, after you clicked and press down “CTRL” (then the layer will go straight down), drag the layer down so only the edges of the layers touch. Then move the layer down in the layer list, should be fourth in the list, just above the “Background” layer.
5. Choose the “Blend tool” in your “Toolbox”. In the tool properties, set the gradient to “FG to Transparent”. Then set your foreground color to white.
6. Hold down “CTRL” and start your blend from the middle of the “Mirror” layer and then drag the line upwards to the middle of your original outline text layer(s).