I know there's been at least one successful hybridization between a rhesus macaque and a baboon (and lots of failed attempts), but no pictures seem to exist online.
It was tried in the past, I think it'd be technically feasible but highly contentious considering how do you treat the child once it's born, is it human? ape? does it get locked in a zoo? studied? go to school? it would be a fucked up situation even if I am extremely curious about it