Abstract: A training go-cart that includes multiple safety features making the cart safe for operation by young children. Each axle of the Wee-Kart has two left tire and two right tires. This double wheel feature adds stability and traction to the cart. To keep potentially dangerous moving parts away from the driver, the engine is placed front of the vehicle and the drive system is housed underneath of the vehicle. The vehicle also includes at least one emergency shut off switch, which is capable of shutting off the motor. A pressure sensitive switch can be provided in the driver's seat so that the motor shuts off whenever the driver gets out of the seat. The emergency shut off switch can also be operated by a radio signal, such as a “kill” signal sent from a remote transmitter held by a parent of the driver.

Abstract: An insert for an inflatable, buoyant toroid has a bottom portion with one or more contoured, concave surfaces radially disposed about a circular base and one or more seating portions above the bottom portion. The center of gravity of the insert is on a vertical axis passing substantially through the center of the circular base whether the insert contains a passenger or not. A flotation device comprising the insert and an inflatable, buoyant toroid has positive stability in water. The center of gravity of the insert is adjusted by a ballasting apparatus. The insert is provided with a variety of comfort enhancing options. The insert includes fastening devices for fastening the insert to an inflatable buoyant toroid. An insert can be provided with a top portion including an access door for using the insert as an equipment storage device.