Modifiers matching pin:

• solid,
• harder,
• straight,
• thin,
• large,
• special,
• sharp,
• long,
• micro,
• fitting,
• visible,
• single,
• collectible,

Simple categories matching collectible:

• item,
• material,
• figurine,
• doll,
• market,
• product,
• document,
• animal,
• commemorative,
• book,
• object,
• lighter,
• information,
• character,
• card,
• art,
• pin,
• invertebrate,
• article,