I had seen few of the similar videos but comparitively this is the best.And also few of them commented neagtively.It really surprised me bcz the purpose of doing this is to save money and also it shows that how one can manage solid waste effectively. The tools used here are washable and recycled but instead of a paper made cup plastic could've been used.
Being an Indian you have such a good channel and sigh awesome videos. You have inspired me to start doing DIY stuff videos. I'm fond of such things, tried many times and succeeded mostly. If I start making videos on these things, it will be awesome. You have earned a subscriber.
I think there are many sprays available in the market whose lid can be opened very easily and then be used for spraying colours this method is bit meticulous and time consuming.