HardHatGear.com sells a wide variety of hard hat stickers for made by union workers in the United States. For custom hard hat stickers, My Hard Hat Stickers and AwardDecals.com both offer many options.
Some of the hard hat stickers available from HardHatGear.com feature images and text that express pride in being part of a union. Some images include bald eagels, bullogs and even the Incredible Hulk. My Hard Hat Stickers features templates customers can use to create their own custom stickers for different job sites. AwardDecals.com allows customers to upload their own designs and then prints out decals on thick vinyl material.