I just discovered this thread today and am anxious to see some prototypes. I loved the coloration of the perfume bottle you posted. The only problem with that is that it would make it difficult to see your juice level, which is an important factor in my opinion. For that reason, I think the color designs in the ornaments you posted might make more sense for an actual tank. I like the idea of drip tips in the more opaque colors though.
Another important issue for me would be durability. I know all glass has the potential to break, especially if dropped. But I suspect these will be rather pricey and I would hate to have it break the first time I knocked my provari over.
Ease of filling and the lack of leakage would also be other obvious issues.
I'm looking forward to seeing the designs you come up with.
I'm glad you found this thread and we appreciate your interest and input!
As far as the solid coloration of the perfume bottle I posted, we
will be offering tanks of that basic style, but we will always integrate a bit of clear glass so that the liquid level inside is easily visible. Viewing the liquid is not an issue when it comes to drip tips, so we will have even more creative flexibility in the colors and designs for those.
On the durability note, we will be using borosilicate (aka Pyrex) glass for all of our products which will be properly
annealed, resulting in a quite durable finished product. We will also make everything with glass as thick as possible to further increase the toughness. However, as you mentioned, glass is glass and will always have a potential for breakage, and therefore should always be treated with care.
Making tanks that are easy to fill and don't leak will be a top priority for us. We know that a PV accessory is basically worthless if it doesn't function well, regardless of how beautiful it may be.
Thanks again for your interest!