“Deadly Giant Snail...”
I guess that was one 1950’s big bug movie that didn’t get made. Probably because it was too laughably difficult to make a giant snail seem menacing. Even one as big as a house.
For a really hokey movie monster, there’s “The Giant Claw”. They ran low on funds so the special effects budget got slashed and the scary bird-like monster ended up being a goofy looking puppet sewn together by a French puppeteer. Pictures at the link.
http://www.bing.com/images/search?q=the+giant+claw+puppet&FORM=HDRSC2
You mean...."THE CRAW!"??????........