Two faulty MFM harddisks:
1. Kalok KL-330 Octagon
2. Kyocera D30-XT
Both I believe have a capacity of 30MB.
The disks spin and on one of them I was able to install a MS-DOS-partition. But I didn't manage to set it up for use with my Sidecar.
Asking € 10,00 for both plus postage and PayPal as gift.