While the popular mouthpiece challenge Hasbro Speak Out game box contains 5 mouthpieces, this may simply not be enough when everyone wants to join. So, save yourself a lot of washing and rinsing and buy a pack of spare guards. Look for those made from medical grade polycarbonate, with smoothed edges, and preferably from a UK based company.
Use for "Watch Ya Mouth" "Mouthguard Challenge" “Jibber Jabber” or "Speak Out" games.
Get your spare Speak Out mouthpieces for Xmas from Amazon UK