Bubbles — MIT Mystery Hunt 2015

This object is meant to restrict a dog's breathing if he tries to pull away from the human walking him.
This object is somewhat shorter than its counterpart, even though it measures a unit that's 60 times greater.
This is the result of a printing technique wherein a surface attracts and repels ink corresponding to a desired image.
This term refers to any custom that can be used to tell who belongs to the group and who is an imposter.
This adjective describes, literally or metaphorically, someone who can't look very far ahead.
This microorganism loves being in warm environments.