I did this for my motorcycle and it looks great, i made it for a triumph street triple 2013 but I think it will fit other bikes, distance between holes is 51mm.
Update 20/09/2014: resized the holes (M6) and pushed them further back so it fits nicely
Update 25/09/2014: Uploaded design V2 adjusted distance between holes
If you want to try any other desing please let me know
P.D. you may have to resize the whole thing by a factor of 10.

0.4 nozzle @ 0.2 layer took 40min.
You might need to scale it by 10