I made a towing cover:

The idea is to reduce the towing drag, make the boat a bit more secure in transport and provide a cover when away from home. It is made from uncoated acrylic canvas. The colour was chosen on the basis that (a) it is cheerful and (b) it was half-price.
The towing drag is important as we are planning to get an electric car and towing can reduce the range by 50%. Custard has always felt particularly draggy on the trailer so hopefully this cover will reduce the drag somewhat.
This is the first project that really challenged my 1940s Singer sewing machine. The biggest issue was ensuring the machine could pull the fabric through, particularly for the central seam where lots of fabric needed to go under the machine’s arm.
Still – it is done and looks ok from a distance!