The site Thumbs & Ammo collects photoshopped screencaps from movie scenes with any weapons replaced by a thumbs-up. Some of my favorites:
Pierce Brosnan channeling James Bond, by Pulai A.
Laurence Fishburne in Matrix Reloaded, by Jonathon J.
John Travolta and Samuel L. Jackson in Pulp Fiction, by Christian D.
Simon Pegg and Nick Frost in Hot Fuzz, by Luke K.
Sigourney Weaver and Carrie Henn in Aliens, by Elliot D.
Leonard Nimoy in Star Trek, by Nicholas C.
Harrison Ford in Star Wars Episode IV: A New Hope, James L.
Epically hilarious! 😀