Unfortunately not, but i will have some at lona-web.org/demos soon. There is a ready to use, barebones project linked in the docs. You have only to clone and run "make server" to fiddle around with it.
The hosting infrastructure behind lona-web.org is very lightweight and Lona makes heavy use of multithreading. I plan on providing "demos" in Form of an code example next to a gif or video of me using it.
I released Lona 1.2 which has a much smaller package size and now can run from a single python script. So there is no need anymore to install much stuff to try it out til then.