3D Printed "First Step On The Moon"

[curious aardvark]

then use the original photo and just extrude it yourself.
Use flashprint and export as an stl you can load into whatever design or slicer you use.
simplify3d will also extrude an imported jpg, but I prefer the range of options you get with flashprint. sphere, vase, flat etc
http://www.flashforge.com/flashprint/

difficult it's not :-)

You might want to load the jpg into a photo editor first and clone over the dark shadow area first, for an even extrusion.

Hell I've got a mate who's space mad and actually believes they went to the moon :-)
(too much hard scientific evidence, for me to believe)
Might do it myself :-)

here's a crude pic:

armstrongs footprint.jpg

Not got flashprint on this machine - I'll have a play when i'm in the workshop :-)
Extra Treads on the original look way too clean and nothing like the photo. this is nearer.