Um, if mini erasers didn't catch your attention already, perhaps the picture of them will get you.
Mamegoma notepad set, accompanied by beyond-cute mini erasers that will probably make you gouge your right eyeball out. This little notepad set unfolds and opens up to reveal these adorable pads of paper, each different - some lined, some not. They are about 2.75 inches (70 mm) wide and 3.5 inches (90 mm) in length. There are six notepads and six tiny erasers.
Some of these sheets make a great tuck in for your pen pals as well! Or even an eraser, if you can part with one.
Pick up a Mamegoma notepad set with mini erasers for $5.85USD. There are two sets - this one is the pink and white set.