Making a Glass Dome
Open the image you wish to 'globe'
draw an oval over the image, this will be used as the base.
Click on the bottom layer
Invert the selection and cut away the excess from the image.
It should look something like this.
Click on the image layer. Add a layer.
This is the setting I used.
Click on the frame tab. and set to 0
You should get something like this.
Use the deformation tool
and make it fit over
your image and base.
and there you are!