Long sleeves for Fairytale Dress

Hi! I love the tulip sleeves on the Fairytale Dress and have a beautiful version of that. But for the Holy Communion of my eldest, I thought about long sleeves - the churches are not heated very much due to Covid, and April can still be quite cold here in Germany. Do you have an idea where I could find a pattern for long sleeves fitting into the Fairytale Dress? Do the sleeves from the Building Blocks Book fit? Thank you for any advice!!