Platinum #3776 Century “Shape of Heart,” a special limited edition, which is enjoying a good reputation for the built-in “Slip & Seal Mechanism” that retains fresh ink for longer periods of time.

It features two heart-shaped pieces created when punching out the breather hole in the nib, placed in a transparent dome on the pen’s finial with zirconia crystals. While the heart-shaped cutouts are normally melted down and put back into making more nibs, the Shape of Heart fountain pen incorporates them into a pen’s design.