Pins, badges, etc

Hello,

The backpack I'm thinking of bringing on my trip has an assortment of pins, badges, and patches on it. Some of the badges have fan-made drawings of popular characters (like Sailor Moon for example). Are these considered counterfeit? I'm wondering if my pins and badges, or my backpack, will get seized by customs on the way into Japan.

Thanks.

No one will care

Japan has hundreds of doujinshi events every year. Fan made goods are very much a part of those events. No one is going to care.

I would make sure they were well attached and protected so they don't get damaged when you are out and about.