Well it does depend on what type of party bạn are having. But I do have a few ideas.
One for example is, having pills like in a 'A Study In Pink' as the centerpieces. Another is if your having bánh nướng nhỏ is buying and then purchasing these adorable cupcake toppers and putting them in the cupcake.
link Another is that if bạn have tables hoặc something bạn could make bàn cloths out of this fabric (It's his wallpaper)
link Also if you're looking for a thêm cheaper alternative bạn could buy this super adorable cookie cutter and make bánh quy, cookie at your house!
link This is all I could really think of/Find. Hope this helps and isn't too late.