Kitsch
/kɪtʃ/
Definition 1 of 2
Pro Tip 1/3Cultural Associations
Kitsch is often linked with nostalgia or affection for cultural trends of the past. 
The diner is designed with kitsch from the 50s, like retro jukeboxes and vinyl seats.
Pro Tip 2/3Irony Usage
Some people use kitsch objects or art ironically to make a statement or as humorous decor. 
His kitsch painting of dogs playing poker was hung up for comic effect.
Pro Tip 3/3Subjectivity
What is considered kitsch can be subjective; one person's kitsch may be another's treasure. 
He fondly called his collection of bobbleheads kitsch, while others saw them as collectibles.