Hi there!
I am dropping in to let you know that I recently shared my favourite craft haunts in Singapore on Notabilia and I think you won't want to miss it.
Pooja Makhijani is a new yorker and the brains behind Notabilia where she writes about the creative and art scene in Singapore. Pooja is also a skilled book binder who has been featured on Design Sponge and continues to share her book binding skills through her workshops in Singapore. While you are visiting Notabilia, you might also enjoy this post on Sewing Supplies as well as this other post on Hand Bookbinding Supplies.
I hope you find the post helpful but if I have left out a craft shop that you think I need to know about, please share it with me in the comments.