Triple Headers 
Theme: three repeated letter combinations at the start of phrases
Mechanic’s excessively affected gadget box? TOOTOOTOOLCHEST
Dance contest winner? CHACHACHAMP
High-kicking dancer at an audition? CANCANCANDIDATE
RATING:

Three grins = Excellent: Loved it; Two grins = Good: Enjoyed it; One grin = Satisfactory: A bit bland for my taste; One teardrop = Unsatisfying: No fun