Child's black board and or white board or sign board (New Costessey NR5)

Hello
Thank you for reading this.
I am looking for a child's small black board, sometimes they have a white board as well on the reverse side; or a sign board. I need to advertise something. I'm hoping someone has one, now unused, just stored away and unwanted.
The wood frame can be chipped, scratched or need mending, as long as it can be fixed. Able to collect within about a 5 mile radius of NR5 , New Costessey.
Thank you