An poo tin could be a small, portable toilet that looks like a can of Russian vodka. The exterior of the tin can could feature a label with a picture of a popular Russian vodka brand, and the label could be designed to resemble a traditional Russian design.
When you open the can, you would find a compact toilet with a seat and a lid. The interior of the toilet could be lined with a disposable bag to make it easy to clean and dispose of waste. The poo tin could be designed to be lightweight and easy to carry, making it perfect for camping, outdoor events, or emergencies.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.