This is not a thread meant for guys who think they should chase girls and buy them drinks in order to attract them.
If that is your mindset, please stop reading.

I am looking for creative, if possible intelligent ways to disqualify a girl from the start and make it seem as if she has no chance with you. Showing fake disinterest

Some examples

" Omg you are a dancer, why am I even talking to you? "
" You're cute. I'd really like you if you were one foot taller "
" I'm not boyfriend material. You need someone to give you attention and buy flowers. Let me introduce you to my friends "

..

This is great right when fashions change. Something like:

"That's a great purse. I just saw three girls with the same one."

Works for anything like it, and you can often point them out. The compliment gets their attention and then the second line knocks them down.

Yea that's a very good line. Women are very insecure about their looks. Since evoking insecurity is the basis for creating attracting, fashion is a perfect topic.
I don't know if that is a disqualifier though. There must be an other term for a compliment followed by something negative.

Another one is

" Wow I really like your new hair colour. Now I can see you coming from miles away "

You can use disqualifiers is 2 ways. You could do it playfully is a joke, so the girl laughs about it knowing that you are not being serious.
For example " Omg do you watch the bold and the beautiful? You and I would never get along together "

On the other hand you also have disqualifiers that really make her wonder if you are being serious. It makes her insecure about how you feel about her and that is exactly where you want to be.

You could do it in many ways. If the girl isn't very clever, tell her how you appreciate intelligence and education.
If she's tall and has dark hair, tell her you like small blonde girls.

I also like to judge her in a playful way
Like

" Wtf this is our first date and you are already asking about my sex life. You must be easy "