An idea that struck me during NYE celebrations, Having inbuilt accessibility stickers like the accessibility emotes could be a really helpful tool for people coordinating large instances and spaces, for example placing a sticker on a door to tell people quickly that a space is designated as a quiet or photosensitive space.
The ability to quickly drop signage to indicate safe spaces a group has set aside could be helpful to instance moderators for large groups, where relaying theses spaces by word of mouth can be difficult. This will help broaden inclusion, making larger events safer for those who are traditionally told to "enter at one's own risk"