That's a truly magical idea, Bardia! I really like how you have thought through all the different elements of your pen and how it would work, this is a really good piece of design work! I can exactly imagine what this pen would look like and how it would work. It seems that there is actually a pen that does this already, although it is a fairly new idea - but this is what happens a lot with inventing, good ideas can come to completely different people in different places! What it tells me is that you already have a great inventing brain and can come up with ideas that people would want to make into real things - I can't wait to see what else you come up with!
