Here is a website I had bookmarked...you can buy lots of bug material here and other kinds too for jar quilts... they used to have the free jar pattern there but I don't see it anymore!
http://www.snowflake-designs.com/
Limited Edition Handmade Christmas Ornaments, Bug Jar Quilt Kits, Kaleidoscope Quilt Kits, Fish Bowl Quilt Kits, Boutique Jewelry and Easter Egg Ornaments!