April 30 was the date of Rokeclif's "Games People Played" event. I taught Merells (Mills, Morris... I've seen 29 names for the game.) The picture here is not of Morris, but of a chess set that I adapted. I haven't documented the use of rubber duckies for chess pieces, but this has to fall under the rubric, "if they'd had rubber duckies in the thirteenth century, they'd have played chess with them."