What you'll need:
craft foam
glue (unless you use self-adhesive foam)
tape
punch in desired shape
cardstock
empty Altoids tin
Cut a piece of cardstock to fit inside the tin.
Punch shapes out of the foam. I used some self-adhesive foam shapes from the dollar store, and punched stars.
Glue the shapes to the cardstock.
Add tape to the backside of the cardstock, to create a slick surface. This is so you can remove the tape from the next step easily.
Roll a piece of tape inside out (try not to make it too bulky) and use it to stick the slick part of the cardstock to the smooth underside of the Altoids box.
Now you're ready to stamp!
If you used pre-cut shapes, and you actually like them, you can just make them into stamps without any punching.
When you're done stamping, just remove and throw the rolled tape away, or reuse with another stamp.
You can create several stamps and store them in the tin.
