That'll be gruyere cheese on the best French onion soup..yum, but some use Swiss or mozzarella. Another favourite 'cheese' over here for sandwiches and hamburgers is called 'American ' cheese...not my favourite by a million..just oily fake orange plastic type stuff..
So On the chalk and cheese theme, I get it now that'll be 'American' cheese and real cheese that yall have.
And for your chalk post I'll put sidewalk chalk. Right @ScottBakula ?