The problem as I see it is that anything that involves tieing will inevitably block the rubber duck from sliding down the half-pipe. So cable ties etc are out of the question.
The best bet would be to have a hole in the side of the pipe and fix with wire, but as I understand it the pipes can't be damaged. Could you maybe get different pipes instead? Ones that are yours to do with as you please?
The best bet would be to have a hole in the side of the pipe and fix with wire, but as I understand it the pipes can't be damaged. Could you maybe get different pipes instead? Ones that are yours to do with as you please?