The Olympics use them, Amusement parks use them, Historical organizations use them, Charitable organizations use them so why shouldn’t you? Have a special Anniversary coming up for your company, self, family or school? There is not better to save a memory or celebrate a great cause.
1-tokens for games
2-commemorative happening
3-anniversary
4-sports events
5-patriotic event
6-momento
7-milestones for losing weight, fighting addiction, 1, 2, 5, 10 year coins
8-charitable organization
9-olympics and special olympics
10-landscape, historical building
11-groundbraking (for added luck I added one more)