I think you are new to this site, a hearty welcome to you on this platform which intends to develop the knowledge among the children. You mentioned a concept of making a friends birthday in a surprised manner. What you thought is right, there are many other ways like making a greeting card with own hands and giving, this would serve the purpose much better etc.,
Above this what I wanted to say is that to grow or to develop well in this site you must be clear with your sentences with proper grammar and spelling mistakes. Please verify once more the differences between 'than' and 'then'. Put capital letters at the starting of the sentences. Be clear with what you wanted to say.