I own a really awful solid mahogany top ukulele that I would not even have the cheek to sell or give away. So what was the solution? I went and bought a coffee tray made of Monkey Pod (cost £5 = $7.30) I cut a new sound board from it to fit the mahogany one that I removed from the useless instrument and glued it in place and sanded it down. Result nicer sound better quality worthwhile exercise. Cheep answer.