Jessel Taank teamed up with Amazon at the Kentucky Derby, curating her must-haves for Mother's Day and beyond. Seth Arnold for Amazon; Amazon Ever wonder what your favorite celebrities buy when they’re browsing their favorite boutique or shopping online late at night? Welcome to Six Picks, where we ask stars to spill their style and beauty must-haves — so you can shop like you’re famous, too. Jessel Taank isn’t up-and-coming — she’s here. The Bravo star is getting ready to film her third season of “Real Housewives of New York” — and welcoming several newbies to the iconic franchise’s cast (including Martha Stewart’s makeup artist, Daisy Toye ). “I think that the chemistry and the dynamic feels really good, so I’m excited for you guys to see what we’ve been up to,” Taank told Page Six Style. She also connected with several newer Bravo faces while attending the Kentucky Derby with Amazon recently, including “RHORI” star Ashley Iaconetti, whom she’s been following since her “Bachelor” days.…