With our love of chemistry and recent attention to elements name and symbols with the Triton method I thought some might like this. Found it in a local teacher supply store. The owner hasn't gotten it on their site yet but if you call they will get you one. Can't imagine it being more than $5 to your door.
Site is www.shop.the3rscatalog.com
Small and water proff. What's not to love
Site is www.shop.the3rscatalog.com
Small and water proff. What's not to love