|9 More ideas...you can make Rivet and Screw out of this.
Open a background image (Click here to download the same background I used on this example)
Draw a small Rounded Selection then increase feather by 5 (Selections>Modify>Feather) Pixels = 5
Apply a Cutout filter using the settings below:
Fill Interior Color = Not Checked
Shadow Color = Black
Blur = 8
Vertical and Horizontal Offset = 3
Adjust Gamma Correction (Colors>Adjust>Gamma Correction) RGB = .5
Go back to your button image (See Step 7) then press [CTRL+C] to put the selection into the clipboard. Press [CTRL+V] to paste this into a transparent layered image.
Resize your image Image>Resize>35%
Press [CTRL+C]. Go back to your background image, then press [CTRL+E]