Our collection has a number of retired breadboards which have been transformed into other objects with a bit of outside-the-box.
Before you do anything drastic, like hurling it into landfill, you can mend a split board, in the above manner…

Or turn it into a solitaire board….

Or a stool, just add some legs…

A mirror, by gouging the centre out…

A painting, no additional costs for framing.
Get a few more and make a feature wall…

Or a wall bracket.
Please send in photos of your creations.