Playing a 6th level halfling rogue in 3.5, and I'd like to replicate a door lock mechanism from a copypasta. The setting is sort of prone to Magic Mart syndrome, so access to 1-4th level spells wouldn't be too difficult; alternatively, I could make something with the profession skill or craft skill or ask the party wizard for assistance.
Here's the copypasta excerpt.
It had a lock, but it was nonfunctional and only accessible from the inside. So in order to secure the door while I was away, I got a remote controlled car, attached it to a string which was secured by a fisheye screw at the top of the door, and tied to a security bar which would drop into the tread of the sliding door, preventing it from being opened.
So when I came home, I would whip out my little remote control, make the RC car run off and lift the bar, then gain access to the apartment. To prevent this system from being discovered, I papered the inside of the sliding door with butcher paper, and I ran a wire outside of the door in an obvious manner, so that the roomie would think that this wire somehow, if tugged correctly, would undo the lock. To my knowledge, all of his attempts to get inside my apartment were by messing with this wire, which was attached to the handle of an antique coffee grinder and a paint can. If you tugged it, you'd get a weird uneven resistance as the handle crank turned and the paint can danced, which added to the illusion that this wire was some secret way of ingress.
I'd like to use this as one of multiple security measures to protect all of "procured" loot that my character keeps in his hut while he's out adventuring. How do I get the effect of issuing commands to make something move without line of sight? Doing something clever with a familiar almost works, but I'm a rogue, and don't have easy access to a familiar. A scroll/wand of floating disk almost seems like an option, but, this line from the SRD, is troublesome.
The disk winks out of existence when the spell duration expires. The disk also winks out if you move beyond range or try to take the disk more than 3 feet away from the surface beneath it. When the disk winks out, whatever it was supporting falls to the surface beneath it.
Almost all of the 3.5 books are available to the players, save for the DMGs and Book of Vile Darkness.
So how do I go about constructing a similar effect using mundane mechanical implementations and low level spells?