when I had a jam in toilet, i have to spend around 5k, over i have seeen a air flusher, they have such power that they can blow anything away, and seen in sewage disposal unit, that can be very profitable bussiness.for sure if one doesnt have local client, they can have hotels, embassy, schools as their client

or one can have movable restroom just like construction ppl used during construction, nepal govn has no fund to make and clean toilets in public area, u can be millionaire if you just put in public area.

plastic recycling is doing awesome making water tank, i dont know which are recyclable and which arn't, but i have seen one near my home , they are doing great and make cheap water tanks and drums.

or one can be saddhu and stand near tourist area and they will take pictures and give money, honestly i have spoken with one sadhu in hot tourist area, he owns lots of cars being used as taxis, his job just stand near tourist and they will take pictures.