Here is a goal: D.I.Y stamp with foam Paper with Sticky Backing , acrylic Paint & Brush or Ink Pad
Scissors, Cardboard or other object to attach stamp to

How would you accomplish this goal?
D.I.Y stamp with foam Paper with Sticky Backing , acrylic Paint & Brush or Ink Pad Scissors, Cardboard or other object to attach stamp to Cut out the shape you need out of the foam with sticky backing. Paste it on to the piece of card board. Dip it into paint or use an ink pad. Stamp out a couple of trial patterns to adjust colors.