In July this year I gave a paper at a preaching conference – the theme of the whole conference was ‘imagination’ and I was asked to speak on all age preaching. You can download a pdf version of my paper here: Improvisation and Enacting Theology in All Age Worship. Enjoy!
reverendally.org 
I found your article really useful. i work across a number of churches supporting them in planning and developing their children’s and all age ministries. This is a great concise article to point people towards with really useful real life examples. Thanks
Thanks Mandy, I’m glad it was useful. Please do feel free to link to it or print it out, or whatever, if there are others you work with who would find it helpful. Every blessing in your ministry.