The 2016 Summer Olympic games take place from 5th to 21st August in Rio de Janeiro. These are the first Olympic Games ever held in South America. There are 306 competitions in 42 different sports, with golf and rugby being the "new" sports (golf is returning after 112 years and rugby is returning after 92 years).
To celebrate the opening of 2016 Summer Olympics in Rio, take any Olympic sports and change it any way you wish. Some examples are: changing sports rules, merging two sports, changing sports equipment, tools, playgrounds, environment, etc.