Make a small air filter out of a few fairly common parts for when you are soldering or for if you smoke (filthy habit), also, if you use a lit fan it makes a cool night light for younger children. This is my first Instructable so please, constructive criticism only. I already had this built so the pics are of it already assembled, but I figured it would be nice for the dead computer contest. I don't expect to win but I thought it would be something fun to make.
WARNING- This does deal with some minor electricity, I seriously doubt you could be injured but, regardless, YOU are responsible for YOUR OWN actions.
Step 1: Materials
-Old speaker, preferably one with a tweeter
-Computer fan, doesn't need to be lit but I had one and it looks cooler
-Toggle switch (optional)
-Maybe some wire
-Activated carbon (buy at a pet store in the fish section)
-12 Volt DC power pack
-Dremel, X-ACTO knife, or similar cutting tool.
-Sabre Saw (optional)
Step 2: Take Apart the Old Speaker
Take everything out, save nothing but the housing itself and the wire jacks in the back. The back on mine was held together by some sort of adhesive, this is where you use your dremel or X-ACTO knife.
Step 3: Put In the Fan
I had an 80mm computer fan that fit perfectly in the large speaker hole. Use your JB-KWIK to mount it in. Make sure the fan is facing to pull air IN to the speaker housing. The hole where the tweeter was is where the clean air will come out.