I've been successful in getting rid of all my magnetic holders and I've got two boxes of screw down holders left. Each box has 18-19 screw down cases in various sizes and are all in the pretty good condition. You can claim these last two boxes by leaving a comment on this post. All I ask is that you pay the shipping cost. As you can see they are in a flat rate Priority Mail box and the cost is $5.20. To get this experiment over with I'll even subsidize some of the cost so you'll just need to send me $4.20. Leave me a comment with your e-mail and I'll get in touch with you with my Paypal information.
Here's the view from the inside and I put in a bunch of bubble wrap to protect the cases.
Let me know if you have any questions.