Forbidden Fruit Lucite caterpillar pin. Light green lucite with embedded Austrian rhinestones inb yello and aurora borealis green rhinestones. Goldton metal. Measures 2 3/4" x 1/2".  Try as I may, my pictures fail to show just how cool this piece is. It's not easily found. 
 
My Forbidden Fruit jewelry is featured in Ann Pitman's book Inside the Jewelry Box Volume 3 - pages 7-12