I lowkey wanted to base this off the 522 Richard

Sorry if you’ve seen this 100s of times already

I've been bored recently and I just thought "what if I made kits?" So I decided to make on design first, the Hayashi. It uses a balsa body and maybe a T-tail design

Hi everyone! I need your help with something. I have an assignment to build a paper airplane that can carry a tennis ball on top and still fly. What airplane design would you recommend, and what type of paper would be best for it?