The foldable helmet will be able to expand in order to accommodate different head sizes. The helmet will feature a lateral middle section bracketed by two side sections. The side sections can be pulled out and locked in place to create the best fit while still meeting the ski helmet safety standards. As an added bonus, the expandable design will provide good ventilation and allow the helmet to pack down more compactly for transport.

Muscle building pills that keep a constant stress and strain by tensing the muscle structure allowing no relaxed muscles throughout your workout. Or take them for exercise without movement. You can exercise while you watch TV or sit or in any situation without moving. Your workout will be extremely effective and increase your size and definition in your muscles. No pain no gain.

I have some ideas on sports sunglasses, made specifically for the adventure racers. They would be used by rock climbers, eco-challengers, obstacle coursers, etc. They are somewhat like goggles, except without the tight feeling around the head. The tightness could be adjusted just before entering any water. The lenses have a UV protection agent to them. Draw-back - wear and tear. Due to the type of sport done, the sun glasses may not make but one trip, but then what sunglasses make...

There are several streamlined car carriers to carry all sorts of gear. I think it would be feasible to create a plastic or fiberglas carrier that could double as a kayak. There could be a lockable, outside shell or hatch to secure the carrier. The hull would be one piece with an attachable bow and rudder, kept inside. After lifting if off the car and removing the contents, total assembly time would be about 10 minutes.

This idea is for a steel torsion spring powered 'ballista' (ancient roman war machine that resembles a crossbow) which fires ballbearings. It could be used for hunting and with such durable ammunition it would be more economical than bows and arrows or firearms. Also would be great fun to shoot at gongs!

I imagine a machine that is designed to allow the user to appear to be swimming in a pool, but it will have weights as well to increase resistance. I am turned off by public pools and the effort to breath just to get the physical movement. Eliminate the breathing strain and you may be able to swim longer with added resistance. No more waiting in lines or having red eye or chlorine in your hair, but all the physical benefits of swimming.

Wouldn't it be amazing if you could easily pack away your dartboard? Well what if all you had to do was blow it up each time you wanted to play?

Instead of having to drink a protein drink for body building, why not just put it all in a pill so it is quick and easy to take.

Instead of wearing jeans or combats, just sew sum thick denim to the inside of any trousers on the knees, the hips and buttocks, and even put a hardwearing layer of plastic between on the knees to provide extra protection without the need to wear thick heavy and oh so common jeans to your favourite leisure park, the skate park.

Sports Camps business. Keep your eye on the ball of this business -- it can cater to kids or adults. Business Overview Every year thousands of children and adults attend numerous sports camps across North America, and launching a sports camp has the potential to be a very profitable business venture, not to mention a whole lot of fun. The theme of the sports camp can vary from hockey to baseball to gymnastics, and just about any sport in between. The camp can cater to training...