The name sounds funny but the idea is no joke: a personal toilet called the Peepoo. Anders Wilhelmson is the Swedish inventor of the idea. He wants to give poor people in developing countries a simple way to improve their lives.

The toilet is a single-use bag made of environmentally friendly plastics. The inside is treated with urea, a chemical commonly used as fertilizer. A natural reaction kills harmful organisms in the waste. It reduces the waste to fertilizer that Anders Wilhelmson says is safe for growing food.