Number 1 has to be Ikea or similar large scale distributor.
Number 2 looks German to me, it has this typical "rauchtopaz" colour which was used by Joska and other Zwiesel makers (but also by Maastricht).
Number 3: the model is very Riihimäki, but I've not seen Neodym glass from them - so I would sooner look in the direction of France.
Number 4: I believe this is Maastricht - I have a similar one with the sticker, but it would not surprise me if simple cylinders in light teal or sea green were made elsewhere too.
Number 5:

Here is a little brother of the dimple vase, very lightweight glass. I was expecting Germany or Italy for this one, the purple one next to it is equally lightweight and seems to be Elme, I was told. Why Italy? Because of the similarities to lightweight bottles made for Grappa bottelers. Very curious to see what Cathy comes up with.
Number 6 - the bowl: my first hunch is Belgium.