So I was just thinking, what if we had another stamp to celebrate our penpal's birthday? For the design, I imagined an open book placed on a warm wooden desk. On the left page, we could show some light, faded handwriting. This would represent the past year of their life, a chapter that's now finished. Then, on the right page, there wouldn't be any words. Instead, the page would shine gently (maybe with a soft golden glow). This empty page would show the start of a new chapter in their life that hasn't been written yet.