Start a collection, or contribute to yours, with a selection of calendar plates. Each represents the months and days of a certain year. An interesting leisure activity, and a terrific concentration when visiting those antique shops.
I have over 70 in my personal collection, with each being of a different year (the oldest is 1906).
If you take more), right here's a starter collection at a magnificent rate of $10 price of $10 each (much better rate. Get in touch with me for their condition, which can vary a little from plate to plate.