Frappe Maker for instant coffee

I was unable to find any decent Frappe maker here in US, and the greek Nescafe is expensive to import here. I'm using Trader Joes instant coffee that seems to be very close to the taste. So I decided to build my own Frappe Maker as all the available ones I found here are weak and do not produce the result I wanted.

Just a reminder, it might be a little hard to make frappe at 3am in the morning... be careful not to make lots of mess... And hold the cup if not a heavy one... it might spin!!!!