Some questions to ask yourself when wondering if something is kitch are:
"Is it tacky?"
"Does it serve any practical purpose?" and finally
"Does it devalue someone or something that is extremely famous or valued?"
If the answers to these questions are: "yes, no, yes," then it is probably kitch.
Kitch would be like a loin cloth with Barack Obama's face on it (a souvenir my friend received from Africa). Some other examples would be: a bobble-head Mono Lisa, a velvet coloring page of Elvis Presley, or a tea set with the Twighlight characters on it. They don't have to encompass something famous but they often times do. Those paintings with the fairies or dolphins amid a glowing sunset are kitch, and so are spoons made out of antlers.