Imo prefork funded precious metal when available
1. Bitbills
2. casascius
3. Btcc
4. Lealana
5. Denarium
6. Polymerbit
7. Cryptoimperator
8. Satori chips
Post fork funded
1. Mybits
2. Squirrelbits
3. Ballet cards and coins
4. Icarus cards
5. Alpen
6. Mrcrypthodl 🤔
I agree with this list and order, great post