Pre-Trek, I distinctly remember once being at a neighbor's house and playing with an old Enterprise toy that shot out plastic discs.
Mark
That was from DINKY
http://en.memory-alpha.wikia.com/wiki/Meccano_Dinky_Toys
http://www.apieceoftheaction.net/2009/10/dinky-toys-spotlight-uss-enterprise-358.html
https://toytales.ca/dinky-uss-enterprise/
http://eclectorama.blogspot.com/2008/08/space-final-frontier.html
Now, I have this very dim memory that the large disk firing version was going to be made into a refit--as seen in ST:TMP.
The Nacelles were to be square--though nothing else changed.
I swear I saw that art--and no--I'm not talking about the tiny ERTL like die-casts.
Playground equipment http://www.plaidstallions.com/playground/space.html
The Liberator looks to have inspired ships on Babylon 5 http://sadgeezer.com/Babylon-5-Ships-Drazi.htm