DIY 10 Home Subwoofer: I wanted a cheap and powerful subwoofer for my speakers and instead of shelling out £100s I went for the DIY route after finding a 10 Pioneer TS-W255C for just £10 used. I'll get onto how its powered later on To make this you need: Old Computer Po… How to Judge a Contest: At this point you have been asked by the Instructables staff to help judge a contest. You may be a professional outside of the Instructables community, prolific author, or a past contest winner. We've run over 1000 contests with more than 19,000 winners to date. Join the winner's circle! Publish your project to enter one of our current contests for your chance to win a fabulous prize. How to Win an Instructables Contest: There are many great explanations on how to write an instructable. In fact, before reading my guide, I suggest you take a look at jessyratfink's class on How to Write an Instructable and The Featuring Guidelines by Canida. Even though Canida's l… Instructables is a community for people who like to make things. Come explore, share, and make your next project with us! Cheap Sluice Box That GETS GOLD: everyone will tell you a small one will drop gold out the back but if you build it right then it wont. this cost around $30 and will get you some good gold if you know where to look. Upcoming contests All upcoming contests and dates are tentative and subject to change. Piano End Grain Cutting Board: The idea for this build came after wanting to make something special for my wife. Being a Piano player I though this would be the perfect gift. Cardboard Mario Kart Costume: In 2018 a group at work decided to participate in a Halloween costume contest. We settled on Mario Kart as a theme and I set about to design a kart that could be made from cardboard. We needed to make 4 of them (plus 2 for my kids) so I tried to com… Instructables Contest FAQ: Here at Instructables we run a lot of contests! We also get asked a lot of questions about how those contests work. Below is a list of frequently asked questions we get asked.