Finnish company Biolan specialises in ecological farming and green area management as well as environmental products. The Icelett is a dry toilet that does not require water, sewer, or a ventilation pipe, and is easy to install anywhere. The difference: the Icelett freezes your waste to -15 degrees Centigrade, which inhibits and stops the activity and growth of nasty bacteria. A biodegradable bag collects up to 20 litres of waste and can then be emptied into your compost. And the best thing…. your bum won’t get cold using it because of a heat lock that is formed by condensing air.