I feel your pain. I have been searching for this plushie for months, to no avail. I've tried everything I can think of to try to get people to back the idea - I've promoted it on various social media sites and forums, I've written to online sellers who carry these plushies in their store, I've tried to contact the people at Onlyfactory to see if they'd be willing to produce these plushies in a smaller quantity, but nothing I've tried seems to have been of much help. I'm really not sure what else can be done.. </3

I'm pretty new to this site, but I've been a Brony for a few years now. Recently, I've started building up a collection of pony plushies. "This is going great!" I thought. Now let's see if I can find a Starlight Glimmer!" 

SO MUCH YES! I wonder what it would take to get this done and hopefully Mr. Cake.

I was thinking that it would be really cool if this plush came with removable 3D glasses as well, like this: 

There is something else I noticed about this character's design that is different. After Starlight Glimmer is reformed, her hair is slightly different as you can see in the picture: