Kitsch:
n. something of tawdry design, appearance, or content created to appeal to popular or undiscriminating taste.
Sentimentality or vulgar, often pretentious bad taste, especially in the arts: “When money tries to buy beauty it tends to purchase a kind of courteous kitsch” (William H. Gass).
adj. Of, being, or characterized by kitsch: “The kitsch kitchen … has aqua-and-white gingham curtains and rubber duck-yellow walls painted in a fried-egg motif” (Suzanne Cassidy).