I bought the house in whiterun as well as all the decorations, but i like to decorate my house with items i have collected on my adventures. so i placed an ivory dragons claw and an emerald dragon claw on a table and st them up perfectly. i left the house to barter but when i came back both items were gone. items in chests were untouched though so that isn't a problem. anyone else having these issues?
There is a known issue in decorating.. (or placing items).
Basically what happens is that your furniture will reset, once you leave the cell. (read: Everything re-spawns)
Practically that means: If you leave the house and have placed items, pretty good chance they will be on the floor.... or worse..
Most of the time all your hand placed items will be on the floor and it looks like someone Fus Do Raht at your items. If you leave it that.. the items will be displaced even more every time you enter the cell.
The only way to remedy this.. leave the cell. Pick up the displaced items (do not take!!) and hand place them again. Now if you leave the cell the items position (in most cases) will be fixed. (tested with bugs in a jar I collected and it works..)
What happened in your case.., probably, is that the claws are either somewhere on the floor... or you entered the house multiple times which has glitched them either in the floor or in the wall. The same issue is also happening to (working) weapon racks.. (I don't know if the same remedy applies to those btw..)