We made it to Rabat and wasted a day trying to get a Mauritanian visa which they claimed would take a week in Rabat. They told us to go to the border. 
Seeing as our day was cut short we thought we would try Ghana and Nigeria. Neither were any help. Others might already know this, but none residents of a country the embassy is in generally can't get for that country. At least not that far from Nigeria or Ghana in this case. Our original plan was to get these visas closer, but thought we would chance our arm. If nothing else it was a good introduction to African bureaucracy.