Also, whatever materials you have or anybody could easily get a hold of is fine, it's a macguyver challenge, so if you can stop a bank robbery with some fishing line, two gum wrappers and two thirds of an ounce of kitty litter, SWEET!
Whatever you have is great, just macguyver it up. I think that simplicity is the key, though. However much i wouldn't object to seeing things spot-welded together or with a complicated electrical system, cogs, gears, hamster-wheels, chemical and bio-neucleic reactions, I think it would be more fun to see things that anybody could make.
In other words, if you are a nuclear engineer, that is awesome, but not everybody can get depleted uranium to power the flux capacitor your tip-up requires.
To get us started, this is the one they taught us to make in the boy scouts. I didn't have a spring doorstop at home, which is why i made the one that i did.
Trying to help with 7.5 Acres in the Chain of Lakes Illinois - - The fish would stay out of trouble if it could just keep its fool mouth shut. Turns out there is a lot I should be learning from the fish.
