Concept: “Wake up, here comes the Tooth King” 
Content: Like the tooth fairy, but way worse.
Writing: A tale of teeth “exchanged” for dead pets (they still do stuff sometimes, it’s okay)
Art/design: Self-portrait of a sleep-deprived maniac grinning over a field of studded green.
Usability: As an (arguably) beneficial camp encounter for the child in us all. 

Concept: “Deliciously crunchy teeth that heal the body. Eat too many and more may grow.” 
Content: See above warning label.
Writing: A grotesque case of oro/maxillofacio/horticulturo/necromancy.
Art/design: A spitting image of teeth growing from an arteria bush.
Usability: Only for planting at night. 

Concept: “Heal from drinking the blood of others.” 
Content: “The fangs of an elder vampire, transfigured into a wearable prosthesis.”
Writing: Slightly addictive blood-drinking mechanics and a ghastly origin story.
Art/design: Slightly toothy, and just a little bloody.
Usability: For those wannabe bloodsuckers.