I surprisingly photographed a lot of signs and posters pictures.
South African car plate

Crocodile farm near Maun

Signs before entering Moremi from Maun

Moremi NP entrance

Botswanian national parks signposts

North (Khwai ) gate to Moremi

Posters in Khwai village

Zambian car plate

At Victoria falls

Zambian traffic sign

Kruger park signposts