Obstacles in various locations designed to hinder the discovery of the dingus, slow parties in their search for the dingus, or kill them off before they get to the dingus (or even after they do, if you want to be really cruel).
These are pretty basic. Use them as a starting point for your devious (and potentially painful) planning.
This list includes potential methods for disarming the traps. They are somewhat generic, as a detailed description of trap mechanisms is not possible, and imho, not desirable anyway (D&D is a roll playing game, not a mechanics test!).
Drop a few of these in front of your party, and let the fun begin….
Dungeons and Dragons Colour 