Click to expand Tap to zoom MDI | Mini Knockout Swearing by MDI $14.95 Click and Collect 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Work out some stress by hitting the Mini Knockout Swearing Punching Ball! This perfect mini punching ball affixes easily to any flat surface and, when smacked, lets out four swear phrases. Let your fists do the talking!