Fortunately, other folks are out there putting corn to these great eco-friendly uses.
Safer Brand (a leader in organic gardening solutions) has introduced corn-based Concern Weed Prevention Plus, an all-natural weed control solution that is not only up to 90% effective on dandelions and crabgrass in the very first year, but will not leave harmful residuals in your lawn. Powered by corn gluten meal, Concern® Weed Prevention Plus® comes in a 25 pound bag providing you with 1500 sq. ft of natural weed prevention. Concern Weed Prevention Plus contains no synthetic ingredients and unlike traditional synthetic formulas, your children and pets can play on the lawn immediately after application. The product's corn-gluten meal formulation results in pellets that evenly distribute nutrients and kill weeds without burning grass or fragile plants.
I haven't tried this product yet myself but if I get tired of pulling my weeds by hand, I might just give it a try.
For more information, read: New Use for Corn: Weed Control