Two parts liquid starch, 1 part white glue. Or maybe the proportions are the other way around, it's been a while since I've made this. ( I've brought it in bowls to Halloween parties.) Anyway, add a few drops of food coloring or powdered paint. Mix it all up until it's this gooey but not sicky emulsion kind of stuff. Makes great blood (red) or drippy nose boogers ( green). Doesn't explode or cause smoke or upset wives, sorry.