Not trying to sound rude but did you even look? I searched coin cases on amazon and out of the first 4 that poped up 2 were 100 count and 1 was 10 count and 1 was 50count, amazon def has sub 100 count for sell

if you plan on even making more in the future though 100 counts are usually cheaper than smaller amounts

25mm:
https://www.amazon.com/Shueriu-Capsules-Storage-Plastic-Container/dp/B085LH9K2M/ref=sr_1_3?dchild=1&keywords=25mm+coin+cases&qid=1592557862&sr=8-3

https://www.amazon.com/Ioffersuper-Applied-Storage-Capsules-Plastic/dp/B0796NFJTT/ref=sr_1_5?dchild=1&keywords=25mm+coin+cases&qid=1592557862&sr=8-5

https://www.amazon.com/Air-tite-Black-Holder-Capsules-Nugget/dp/B00LAB1X9K/ref=sr_1_6?dchild=1&keywords=25mm+coin+cases&qid=1592557862&sr=8-6

30mm:

https://www.amazon.com/Haifly-Plastic-Capsules-Containers-Collecting/dp/B076DN5YVC/ref=sr_1_8?dchild=1&keywords=30mm+coin+cases&qid=1592557872&sr=8-8

https://www.amazon.com/Air-Tite-Capsules-Franklin-Kennedy-Walking/dp/B00L9HOG5S/ref=sr_1_12?dchild=1&keywords=30mm+coin+cases&qid=1592557872&sr=8-12

https://www.amazon.com/Airtite-Container-Air-Tite-Capsules-Franklin/dp/B00BEFWVRU/ref=sr_1_13?dchild=1&keywords=30mm+coin+cases&qid=1592557872&sr=8-13

https://www.amazon.com/Teensery-Plastic-Lighthouse-Capsules-Container/dp/B0197P99E6/ref=sr_1_26?dchild=1&keywords=30mm+coin+cases&qid=1592557872&sr=8-26

https://www.amazon.com/Echaprey-Fashion-Storage-Collectible-Commemorative/dp/B07VP9XZX9/ref=sr_1_27?dchild=1&keywords=30mm+coin+cases&qid=1592557872&sr=8-27