Looks awesome! I'd be down for this if you sort out the "keep it together without glue" issue as well as getting a PCB. Not everyone have the want to hand wire, even if it is for a 6 key macro. It does look pretty sweet though, I'll keep checking back to see the progress if you decide to take it further.
Thanks!
I need to design PCB and I am studying about it
As possible, I think about Arduino controller with bluetooth module (to use it wireless)
Yeah, that would be pretty awesome having a wireless macro! I don't know if anyone has tried that before, none that I've seen before anyways... You'd have to sort out a battery option then, but I'm sure there are plenty of cell phone batteries that could work in a small form factor like that. I'd most likely see what's out there and try and work the "attaching everything together" situation around that. In my head, you might be about to attach everything with just one screw on left side. PM me if you'd like me to draw up my idea, I'm a graphic designer so it shouldn't be a big deal.