The candy bars each cost $3 * 2 = $<<3*2=6>>6.
The cotton candies each cost 1/2 * (4 * $6) = $12
6 candy bars cost 6 bars * $6/bar = $<<6*6=36>>36.
3 caramels cost 3 caramels * $3/caramel = $<<3*3=9>>9.
All the candies together cost $36 + $9 + $12 = $<<36+9+12=57>>57.
#### 57