Not familiar with the plant but I believe it's Rhipsalis cereuscula. It is a succulent so care would be similar to what I responded in your other threads, but I'd wait for others that have the plant to comment on it further.

Yes, both straightneck and crookneck varieties are summer squash. Used before seeds form. 4- 6 inches in length are usually the numbers quoted, But they can be used any time up until the skin becomes hard and the seeds become non palatable. Generally, they are a bit smaller than zucchini.

Problem with Woodrose's hack is that this zipper has what appears to be heat set plastic parts that are supposed to prevent the zip from sliding off the ends of the zipper. They are not removable in general. You have a starter box and insert pin at the bottom and rather large stops at the top. If they are metal you could try to remove the top stop on the right and just rethread the zip down to the bottom but I just assumed they were plastic and heat set on. The zip mechanism might be damaged which makes it toast. It would not be a difficult zip to replace since it is not hidden. You would not need a zipper foot as the width of the zipper is a fashion statement. A zipper foot is called for when you have to sew right next to the teeth. I used to do a lot of sewing.

Rouge - I only have one Viburnum left in my yard. I just added two more, but, they were small inexpensive pots so I don't mind taking a chance on them and I've already seen the Fall color which I would really like to have. I tried probably 4 different varieties when I first started working on the shrub border in my yard...years ago. I ended up having a problem in one way or another with all of them. I do have a Highbush Cranberry that I still have that has lasted, but it does get the Viburnum beetle. This year wasn't too bad. It's not all that tall. Maybe 7ft and I trim it to a little lower than that. It takes a good deal of shade and berries a little. I bought another one and I hope there is more sun where I'm putting it to get more flowers and berries. I had a maresii - that has the horizontal branching and that was very nice, and I don't remember what happened to it. I had one called 'Red Wings' that one was amazingly fast growing and large. I just couldn't find a good place for it. I had a carlesii - and that one was susceptible to the beetle. Still...the fragrance was amazing. Nothing quite smells like that. It deteriorated over years due to the beetle and I let it go. But...that is one that I want to get again. I see that Bluestone Perennials has one called 'Mohawk' that is a carlesii hybrid that is supposed to be excellent and I hope to get a few of those in the spring. So, I guess I have an ambivalent relationship with Viburnums. I would have expected them to do better for me but they didn't for various reasons. But, if you are not spending a fortune, you can enjoy them for 5 years and if something about them is bugging you, you can replace them. That's at leasts my philosophy at this point. They are too good of a shrub for birds to ignore them, to my way of thinking.