Where can you buy pactio cards from the manga negima?

Where can you buy pactio cards from the manga negima?
There are different types of Negima! cards. One type is the Neo!? card, another can be used to play a game. The pactio cards seem to be, like the Neo!? cards, released with various limited edition manga and such.

Fei K card: available with tankbon 29 limited edition
Nagase Kaede card: available with tankbon 27 limited edition

Imma Albireo card: available with tankbon 25 limited edition
Rakan Jaku card: available with tankbon 24 limited edition
Murakami Natsumi card: available with tankbon 30 limited edition
Kasuga Misora card: available with Negima! drama CD
Sakurako Shna card: ?

Hakase Satomi card: ?
Kakizaki Misa card: ?
Aisaka Sayo card: ?
Naba Chizuru card (paper): ?
Asukura Kazumi card: available with tankbon 23 limited edition
Kasuga Misora card (a different one, made of paper): ?

I also have seen cards for Setsuna and Konoka
Note: These were all based on sellers on eBay. Also it says they're made of plastic. That might mean they have a plastic cover thing.