Mosquito Trap: Boil 1 cup water. Stir in 1 cup sugar. Add in 2 cups cold water. Once it's no more than 90degrees, add 1 tsp yeast. Make sure to tape the cut off top inside the body of the 2 liter bottle so the CO2 doesn't escape through the sides. cover in something black (mosquitos are attracted to dark things) and watch it work. Replace the solution every 2 weeks.
15 Easy DIY Projects to Make Your Backyard Awesome