No one wants to forget his/her precious moments and that would be your point of view as well. Considering the bitterness of life, pleasure moments are rare in our life. So the effort to preserve these joyful moments, is always a healthy practice. We do different things according to our social norms and resources to preserve the events in our daily routine life. Some arrange functions and record it with a video camera to flash back to those moments after a certain period of time. Some distributes sweets and other cards for the different occasions. Some companies print calendars and distribute gifts to be remembered for a long time. In the current scenario, Custom Coins may also be a good addition in the above mentioned sources of expressions. In this context, an individual, a family and an organization can use challenge coins as memorial coins. On the achievements of benchmarks, NGOs could also issue memorial coins to boost up their strength in the public.

The concept of the challenging coins has been taken from the World War1, when a lieutenant ordered to all the soldiers to keep a gold plated bronze coin with them while fighting. Unfortunately, one of the pilots of Allied forces has been caught by the Germans and sent to prison. That particular officer had folded his coin in a leather pouch and wore it round his neck. Soon after some struggle, the pilot escaped and reached at the boundary line. When he was asked for identification, he showed his coin and get through. After the incident, the identification coin had become the part of the Military Uniform. That was the beginning of challenge coins.

As a medal or medallion, coins are being used for a long time. These medals tell the whole story of some one`s great achievements. Different companies distribute these coins in the shape of key rings to promote their brands and products. Some schools are also using coins as their school badge. Safety Awards could also be given in the shape a challenge coin. Forces could issue some theme coins as well at the start of the year to spread out the slogan for the next year.

To enhance the trend, on the government level, these coins can be issued as the replacement of the posting tickets and currency coins on different memorable occasions. Moreover, we may use these gold/silver challenge coins as a gift for our loved ones. At the wedding ceremony, on the birthday event and on the occasion of the inauguration, we may utilize these challenge coins as a token of memory. 

The coin manufacturing companies also design coins on the anniversaries of the heroes and offer them to the public to purchase. In 1959 a coin was issued by Phil`s Coins, a coin manufacturing company, on the 150^th Anniversary of  Sir Abraham Lincoln.A memorial coin was also issued on the 10^Th Anniversary of 9/11 disaster.

Undoubtedly, these memorial coins tell the story of the past in the shortest version. The generations to come, could get the glimpse of the history through these coins.