Some friends and I plan on watching Helvetica (again!) this Friday and eating typographic foods. So far, we plan on making alphabet soup with alphabet crackers, followed by alphabet cookies.
There is chocolate type, but I don't think we have the time or funds for that unless we cast it ourselves.
Typographic fluids will be one issue. The only solution I can find is http://ice.
I'd love to see what other typographic foods are available.