For a satirical look at items like this divine door knocker (I wonder, can I get that in a Revelation 3:20, instead?), check out kinda kitschy, a blog whose tagline reads: "The world is laughing at us. So am I."
Speaking of kitsch, Quentin Schultze made the following observation about its use in worship in By Faith magazine (HT: Phil Ryken):
Young people witness some of the cheesy video and computer 'art' in worship and see it for what it is: kitsch. Stock clip art. Old-fashioned, 19th-century background images under song text: the sun shining on the cross, running streams, baby faces--all of the stereotypical images that say, 'Christians are crummy artists and naive sentimentalists.' To them, such kitsch is like handing out illustrated kids' Bibles to high school students and telling them that these images represent the depth of insight and excellence of the Christian faith.