There have been many postings of waterfalls that looked anything but silly. In fact with several you could almost feel the spray.
Don't give up. Hopefully some will post their pictures and fill you in on the details.
Bob
Don't Ever Give Up
Thinking about NOT building waterfalls for two reasons: First, I'm not good at it - tried DAP, soldering iron on plastic, heat glue, etc. Second reason (excuse?) is that structures that are not supposed to move (tunnels, bridges, buildings, track, etc.,are fine, but an element that is supposed to move and doesn't just looks silly.
Still not giving up/open to suggestion.
Sid