That's a great topic! Manifestation is the power within our own selves. 2 months ago i just watched a video that if you want to fulfill any kind of things just manifest about it, the video i saw was on increasing your height by manifesting that 'I am tall' i just did it for 1 month and the suprise was i grew taller 1.5'feet and that was really quite surprising for me. It's actually the game of mind, whatever you guide to your mind the mind will respond to it back as you feel..!!
Seriously?
1.5 feet is lots, what's your age?
I don't think things like these happen with manifestations, even if it does then it may be 1 or 2 inch but 1.5 feet seems unbelievable, or unless you are a teenager and that's the time your height goes up.