Reusable ECO FLY and WASP Trap - Use a soda bottle to trap flies or wasps that bother you

thingiverse

This Device can be mounted on a Coke bottle or any soda bottle with the same thread. Thanks to its funnel shape, flies or wasps attracted by smell will go inside the bottle but they won't find their way out...so basically, they will die. For Flies: You just need to put inside a sardine fish (better if you cut it into 2-3 pieces) and fill 3/4 with water. Hang it in your garden at about 1.5 meters from the floor, not too close to your house since this will attract flies. After 3-4 days (the fish needs to start decomposing), it will attract flies. The more flies die, the better it will work, so when it's full, you can just empty half of it and add water (the fish is no longer necessary). For Wasps: In this case, don't put any fish but 1/2 water - 1/2 beer - eventually some sugar spoons. Beer is the most important part. Fill the bottle to about 3/4 of its volume. Wasp attraction will start immediately, so this could be a good solution for excursions or camping, etc. Keep the original bottle cap. Once full, you can use it to close the bottle and throw it away...or you can just empty and reuse. Thanks go out to Alexander Purikov for creating the cup thread.