I need your help please! My teacher assigned this Digestive System Poster Project... where I have to design a model of the digestive system (mouth, esophagus, salivary glands, liver, stomach...) where each organ is represented by something (other than the actual picture of the mouth, esophagus,..) that performs a similar function to each organ. and this needs to be on a poster.. so any ideas of what picture of real life materials i should use to represent this? he gave an example: blender = mouth-- a blender like the mouth grinds things up and makes them smaller... I'm not very creative.. :/ * i need something so that i can put on a poster