Cow Silhouette 2
by raster, published
My daughter likes cows, so I got this one from OpenClipArt - http://openclipart.org/detail/5140/cow-silhouette-2-by-boort - and created an DXF file and then extruded it using OpenSCAD.
I've included the .scad file in case you want to change the height.
Print it on your 3D printer.