T.K.
http://www.associatedcontent.com/article/860693/how_to_th...
You could do Hot Dogs and serve them on a plate on top of a big round circle made to look like a thermometer in the red showing HOT
Cold Pizza, on a themometer in the blue showing COLD
White Grapes could be hail
Blue Hawaiian Punch in a punch bowl with swedish fish for a tidal wave or ocean
You could tint dip red and have it sitting in the top of a mock vocano with veggies at the base for a volcano crudete