In a 6 - 8 inch bowl, mix together water, drops of food coloring, liquid detergent and starch. Using a straw, blow bubbles into the mixture until the bubbles form a structure above the rim of the bowl. Make a print by laying a sheet of white paper across the bowl rim, allowing the bubbles to pop against the paper. If the bubbles pop too quickly, add a few tablespoons of sugar to the water. This paper would be nice for stationary or envelopes.