I also entered this in the Child's Play Lego Challenge! I find entering challenges encourages me to think outside the box and push myself to use my stash and go outside my comfort zone. This one happened to be really easy because I was doing a Lego birthday Party!
This layout was even harder because I wanted some Lego paper on there and I was almost completely out! The red strips are Lego paper and the yellow randomly placed is too! I also made the L and H in the titles from Lego paper! To finish off the green Lego paper I placed the few pieces I had left on the yellow side of the layout to balance the green!