This egg is one that you can make your own :)
My example is using a fairly small image about 400 X 600 
pixels but the general principal can be followed for other sizes and 
values scaled up/down to suit.
Download My egg preset shape.HERE..Place this in your Preset 
Shapes folder.
Select a source image which you would like to use ..It can be 
a pattern, painting , photograph ..or whatever :)
I chose a pretty floral painting by Australian artist Ellis Rowan.
New Vector Layer and reduce opacity to 40%
Select Preset shape tool and locate your egg shape.
With foreground null and background white hold down the shift 
key to maintain your shape and draw it out over your background image, placing 
it as attractively as you can.
With the Object selector [Pick tool] make any fine 
adjustments.
Selections > Selections from Vector Object
Select your background layer and Selections> promote 
selection to layer .
Layers> Arrang and bring this layer to the top and remove or obscure background 
layer.
Keep selected.
Effects > Geometric Effects spherize and choose 
ellipse.
The strength that you use will depend on your image .
I used 80%
Adjust> Sharpening > Unsharp mask
My settings:
Now for some shaping:
Keep selected.
New raster layer Blend mode multiply 
Effects > Cut out
I used a darker colour from my image and these settings.
New raster layer, blend mode dodge
Effects> cutout
I chose a light colour from my image and positive 
settings:
Now for a highlight:
New raster layer blend mode dodge
Select soft paint brush with opacity 30% and fill 
#c0c0c0
Make any adjustments to the opacity of your cutout and 
highlight layers and deselect.
I added a little embossing to my image and boosted the 
saturation before merging my layers.
...and another example [vintage style]:
You can download a .pdf file of this tutorial HERE
Judy
Some Further Tips:
Don't be afraid to experiment with the opacity of your cut-out or highlight layers.
Lighter colours may require lower opacity.
Whilst still selected blur these layers if you think it is necessary.
With some images I found that using the softening brush around the outline of the egg in my merged image, gave better perspective











