Display Cases don't work automatically like Weapon Mounts. You have to drop the item on the floor, then press and hold E so your character 'holds' it, then use the mouse to physically position the item into the open display case.
Talk to her and ask to rearrange her equipment then add stuff to her inventory!
put it in the case under the tablets
you can put up a funky colour, by a teenage bed (argos) and put all your nice stuff on display
Put your rare coins in a glass case that has a lock to it.
Think about the question... -_- every other elder scrolls had one, why wouldn't they put one on skyrim...
If it's against your will and you have asked them not to, yes it is.
Try installous or cydia, not on appstore
I saw a beautiful dress in display.
Put a price on it.
you put stuff in it for your classes. and you put extra stuff in it .. :)
on the ones that come with the guitar there is a spot to put stuff under the neck about 3x5x7"
put water in it, tip it from side to side. If it leaks you cannot use it. If stuff can get out of it, than stuff can get in. Of course if you do not care about outside contaminants, then go ahead.