I did the same Halloween Lesson with Keishin Daycare kids, and they're just sooo cute!! check out the photos!
As you can see from the photos, I had hawaiian lei, bunny ears, shrek ears (from USJ), princess tiara (from USJ), baby bib, panda mask (very popular one among kids), and the cute winnie the pooh ears I got when went to Disneyland with Noriko before my B-day.
And here's Yuka-chan, wearing the fairy wings and the fairy wreath that I made... She looks so adorable!!