This is a project I completed for Aussie Scrap Source for their Make it Yourself Series in March.
I elected to do quick and simple stamps. This would be so easy and fun for you to do with the kids.
What you will need is;
Craft Foam [I got mine from a discount store]
Acrylic stamping block
double sided adhesive tape
Using either the craft knife and/or scissors cut out your design
Ink and stamp away to your hearts content!!! :)