If you see hatchling turtles being given as carnival prizes, you CAN do something. Get the name of the carnival and the address of its HQ, and then contact your regional FDA office and lodge a consumer complaint. The FDA office can be found in the blue pages (government listings) of the phone book. Since you already know the name of the carnival and where it will be, you could probably call the FDA now.
The sale OR OTHER COMMERCIAL DISTRIBUTION of turtles with a carapace length of less than four (4) inches is in violation of 21 CFR1240.62.
The actual regulation governing the sale and distrobution of turtles less than 4" in length can be found at
http://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/CFRSearch.cfm?FR=1240.62
and more information is located at
http://www.fda.gov/ora/compliance_ref/cpg/cpggenl/cpg170-100.html
You can also contact the organizers of the fair and ask them to see that no animals are given away as prizes. Play the FDA reg as a trump card if needed.
Katrina