Forum lemonade recipe suggestions?

Hey guys,

I am planning to organise a get together for my friends next week. It's been awhile that we haven't met each other. everyone was busy with their works. So finally we got time to meet next week. They love lemonades so I decided to make that but don't have any idea how to make it. I searched online and read this blog http://www.flowerscanada.com/blog/recipes/elderflower-lemonade-with-frozen-berries/ . The lemonade is quite interesting but I don't know how the taste would be. Can anyone assist me? Whether this will be a good option? Please advice.