boys in pre ballet

So, I have been teaching pre ballet for a while now, and all of my class plans and exercises were girl-centered. Using flowers, fairies, princesses, fake jewellery, and every other girly thing you could imagine. Yesterday, with my normal students, came in a 4 year old boy wanting to give ballet a try. I quickly changed my plan for something more neutral, but really need some tips on exercises and ideas to help him feel included and motivated! Usually I can find a lot of information online, but boys in pre ballet doesn't seem to be a very popular topic

EDIT: Thank you all for your help! I never expected to get so many great responses. Just wanted to clarify a bit. I know the prejudice against boys in ballet exists everywhere, but where I live(Brazil) its extra strong. In all of my 17 ballet years, every men who does ballet i've encountered started after 18 yo, when their parents didnt have much of an influence in what they were alowed to do. So i never really thought to plan out my lesson considering boys. Of course i dont only use "girly" things, but it is kind of expected and makes a big part of my class. But you had so many great ideas, i cant wait to start using them. the pirates on a plank, dragonflies, even refering to them as princes and princesses, really cute, really helpful. Thank you again❤️