Kidnapping

Spin of the Wheel Box:

Blood Vials:

Periodic Table Poster:

Fake Hand:

Finger Jars:

Morse Code:

Directional Lock:

Safes:

Blacklight Wall Trail

Key Holder for Wall Pipe: 

1 - 3/4"  Male Adapter Nipple Fitting: https://www.lowes.com/pd/B-K-3-4-in-Threaded-Male-Adapter-Nipple-Fitting/1000505897
2 - 3/4" Brass Caps: https://www.lowes.com/pd/B-K-3-4-in-Threaded-Cap-Fitting/1000505507 or  https://www.lowes.com/pd/B-K-3-4-in-Threaded-Cap-Fitting/1000504779
(The first caps are a  bit larger/heavy duty, the second caps are lighter)

Use super glue to glue one side of the container shut, so that the container opens from one direction.