Mason Jar Fly Trap

thingiverse

Fruit flies can be a nuisance, but they also serve as a warning sign that your organic food is getting a bit too... well, organic. If you find yourself swatting at tiny pests in the kitchen, try this simple trap: place an inch or two of apple cider vinegar at the bottom of a standard Mason jar and screw on the lid - it's like a fly magnet! To make it even more effective, use a crystal cut jam jar so those pesky flies don't hang around.