You could do all sorts of things with letterpress letters (regularly available at Flea Markets or on Ebay. There is an artist on Etsy that has lovely photos of letterpress sets. Check it out at: http://www.etsy.com/shop/thetypejunkie
I have old enamel/metal sign letters in our family room (similiar to ETC photo) .... three large blue ones... that spell the word RED. This always confuses guests, but I love it.
You can find dishes, towels, mugs, hooks, and even rugs with letters or numbers! Count and spell to your hearts A quick google search or search on ETSY and you will find plentiful options!
Happy Spelling and Counting! Until Next Time....xoxo