I need creative ideas!?

My daughter goes to Faith Christian Academy and they are having a silent auction April 11. I just found out today that I am in charge of the clroom project. Each clroom donates a project toward the auction. I have until March 30 to get it done and turned in. Up to $75 can be reimbursed and each student in my daughters cl has to somehow add a personal touch in the project. Some ideas from past projects are one cl did a stepping stone with each of the children's pictures under the pebbles, a park bench with thumb print bugs and their favorite bible verses written on it, a glazing ball with bible verses written all over it from the students, and a scrapbook made by the students. This is my first time doing it and I would love a great, easy idea. Any ideas?!?!?! Thanks for your help!!!