I got them on Amazon

15 packs Mini Keychain Mini LED... https://www.amazon.com/dp/B07FD2DM3D?ref=ppx_pop_mob_ap_share

These ones are a little more expensive, but better quality Uniclife 10 Pack Mini Keychain... https://www.amazon.com/dp/B07G7WYR1Y?ref=ppx_pop_mob_ap_share

Yeah I almost dropped mine in my first EDC, luckily it landed in a pile of vomit instead..