Hello there I'm not sure if MC can do this but I dont know where else I can ask. There is a bug about the sculpting station that the hammer or handrill that is on your sims hands sometimes wont disapear after your stims is done, it will continiously hang with your sims hands, like that food plate glitch. They can be moved out of your sims hands via moveobjects on/off on build mode, but it is uninteractable by sim on live mod and the mouse cursor is greyed out upon hovering on it. The only way I have found to fix the issue is to reset your sim via edit town. but if you use moveobjects, the hammer is gonna be at your lot forever and there is noway to remove it.

Not really sure, but it's easy to find out when this happens.

On the lot in question, NRaas > MC > Object Stats > Non-Inventory > and look for the errant object, select it to Flush. That does a force-delete of all objects of that kind in that category on the lot. (MC Cheats module required)

Generally though, an MC Reset of the sim should take care of objects stuck to their hand, though that might be intrusive to gameplay as you may not want the sim fully reset like that whenever this happens.