Artisan soap from Burkina Faso is worth adding because it feels like something you actually noticed while travelling through Burkina Faso, rather than a generic souvenir. Small bottles are best. A local scent, soap or oil feels personal, but it is still easy to pack and usually does not cost airport-perfume money. The ideal version is modestly priced, not too bulky, and good enough that you would buy it again even without the holiday memory.