Custom challenge coins are small items typically made of metal such as brass or zinc, that are specifically designed and created for an organization, unit within the military, or for individuals involved in various activities, events or achievements.

These coins often bear the logo, motto or name of the group or event, and can be used as a form of recognition or as a symbol of membership. The origin of challenge coins is believed to date back to World War I and their popularity has continued to grow ever since.

They are often exchanged as a gesture of respect or gratitude, and some organizations use them as a historical record of their activities or achievements.

Custom challenge coins can also serve a commemorative or souvenir function depending on the specific design, materials used, and intended purpose.