@jeanwilson Hi Jean,
I tried writing on rice--very doable. I ended up holding the grain by pushing it into a glue stick and holding the stick. Worked great. The thing is, though, only short words were possible (perhaps I should get long grained rice), and monoline letters were fine, but getting the shades for Spencerian were quite difficult on the curved, uneven surface.
So why not try other food stuffs?
Here's a piece of #81 Rotini. One can get the whole alphabet plus numbers on this baby. I bet one could get a novella on a box of spaghetti--the form is like built in guidelines, too.
Better get back to the desk and write something useful now. My wife is getting suspicious when I keep returning to the kitchen with pen in hand.