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Yes. Truly necessity is the mother of all inventions. As you said this picture was taken in the Ifugao area so there is a need to come up with ideas on how to transport fish over the mountain area and keep them fresh. In coastal areas the need is not as urgent as in the mountains but still this can help the marginalized vendors. Perhaps a word here and there to some people who can pick up the idea can launch this. I will most definitely introduce this to them.