If you live on the east coast of the US, or anywhere with a stink bug problem, this is a useful project to do with your recycled soda bottles: Cut off the top of the bottle, turn it upside down, and tape it back on so it’s sort of like a funnel. The one in the video i linked is meant to be left out to catch them, but you can also make manual ones to catch them with using a similar technique. We’ve made dozens of traps we’ve given to our friends.