You can copy a character to test shard with it on board and try some different approaches there. I heard at some point cutting the bag with a scissors might do the dropping trick, not sure if it's reliable info.
Since cards are around 60m (one hand), I'd say stuck should be less than that, cos they are....well....stuck
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
. Of course, some soul could pay well to get them drop on a road in front of a....cazino. *grins*
I saw great stuck items going for about 10-15mil. Cards is by far the best i've seen so 25 is a good offer to start.
good luck