Promotional Keychains & Keylights, Yellow Plastic Construction Hat Bottle Opener Key Chains - Heavy Duty, Let our Yellow Construction Hat Bottle Opener Key Chain do all the hard work! This cute key chain is perfect for events with a yellow color theme. Our Yellow Construction Hat Bottle Openers are made out of heavy duty plastic and aluminum. Use our yellow bottle opener key chains as a party favor for any Construction theme party. ... #KEY083 $1.41/each.