Forever Sealed Love, Heart Lock Box | Valentine's Day 2026

I designed this heart shaped box for the Valentine’s flash contest 2026. The two halves can be sealed by inserting a lock bar. Once locked, the heart can no longer be opened without breaking it. Just like the famous love locks on bridges around the world, this little box symbolically seals your love for eternity. ❤ (Just don't think about bolt cutters. ;-))

Inside you’ll find two separate compartments – perfect for hiding away love notes, handwritten vows, initials, names, tiny photos, diamonds, or any other small treasures that mean the world to you both.

Not ready for forever just yet?
No problem! I’ve also included a second, fully reversible lock bar (LockBar_reversible) that can be inserted and removed as many times as you like. But, be sure not to confuse the two bars! The permanent one does its job really well! Trust me — I tested this more thoroughly than I wanted to!

Have fun printing!