I have an idea for a student organisation. Can I make it a reality at Yale-NUS?
As already mentioned in one of the threads, it is entirely possible. You can plan everything -> spread the word about your new organisation among your friends, make a post about it on Facebook, create posters to hang in campus lifts -> wait for people to show interest and start the realisation of your plans! It is as simple as that:)
I would also add that the school is always open to communication. So, if you have an interesting idea and need some financial support, the chances are quite high that you will receive some aid for it. Conversation is the key element in this process. A student has to talk to the administration and persuade them (often this is not that tough) that what he/she wants to do is worthwhile.