A design for $4 crayfish trap (using materials for a dollar store) from Darren Sinko and his science club students at North Bend Middle School in Oregon: http://www.nbms.nbend.k12.or.us/dsinko.html
A design for $4 crayfish trap (using materials for a dollar store) from Darren Sinko and his science club students at North Bend Middle School in Oregon: http://www.nbms.nbend.k12.or.us/dsinko.html