It looks that you had a lot of fun and i am sure @spintwister is a great teacher:) I did a lot of collage workshops with adults but none with kids, i was always afraid to have them near cutters and scissors. Once i participated in a watercolour workshop with kids but in the assistant position, just like you and it was so fun. Their imagination has no limits and as you said the cannot lie, if they are bored you know it in a second,lol