Homebrew PCBs

> But isn't it kinda narrow, the ribbon?
> How small would the PCBs need to be?

I requested samples from various vendors who stock thermal ribbons for 
zebra printers.  I got wax, wax/resin and resin ribbon samples.  The 
narrowest is 3 inches, the widest is 4 inches (making the widest board 
4 inches).

If it were possible to find a solution to get this to work, in my 
resources if I look harder I am sure to find ribbons which would be 
probably 8 or 9 inches wide.