15cm is still 3cm more than what’s allowed to carry without good reason. Replica or sharp doesn’t matter in this context because the question isn’t whether you could hurt someone but whether the public might worry you’re going to hurt someone. You could reasonably argue that it has toy colours and therefore doesn’t count as replica but looking at the image you’re relying a lot on goodwill, there.
Also, a particularly stiff twig is a blunt weapon. You’re not supposed to run around with broomsticks if you’re not doing any actual sweeping, either. Or hang out in an dim underpass with baseball bats unless you’re an actual baseball player and are waiting for the train to your game or something.
15cm is still 3cm more than what’s allowed to carry without good reason. Replica or sharp doesn’t matter in this context because the question isn’t whether you could hurt someone but whether the public might worry you’re going to hurt someone. You could reasonably argue that it has toy colours and therefore doesn’t count as replica but looking at the image you’re relying a lot on goodwill, there.
Also, a particularly stiff twig is a blunt weapon. You’re not supposed to run around with broomsticks if you’re not doing any actual sweeping, either. Or hang out in an dim underpass with baseball bats unless you’re an actual baseball player and are waiting for the train to your game or something.