35/1.8 DX lens on FX
When I switched from the D300 to D700 I sold all my DX lenses except for the 35/1.8 DX. I took some shots with it but it did, as expected, vignette heavily. I ended up selling it but I think it would have been a cheap, light, 'usable' 35mm alternative lens on FX. There are much better options...that cost more.
Anyway here is a shot I took at the time (corners have been cropped out due to vignetting). Feel free to share any of your DX on FX images.