Ginger is my choice you used to be able to get ginger jubes from woollies or crystallized ginger works fine as well. On one trip crossing the ditch on the way back to Melbourne on old aunty Dawn it got a bit messy, mind you they had a French night that night with frog legs and snails on the menu. There were passengers chucking up left right and center, us we got stuck into the ginger and although we felt just a touch a queasy, we were fine. We always carry a bag or two whenever we cruise. ðŸ¤