As long as it is not used for commercial purposes, it is ok. To put it simply, as long as you are not using the name of the Olympics to carry out commercial activities without authorization, such as selling Fuwa or making money in the name of the Olympics, for example, printing a The Olympic emblem and the five-ring flag serve as Olympic licensed products. As for what the poster said, he should only be rewarded and not punished! Think of it as promoting the Olympics! Finally, I wish you good results in the dragon boat competition!