Create your own Custom Megaphone Shaped Car Magnets with our Design Tool. Important: Read product info before ordering. NO MINIMUM Quantity Limits Final price based on your design. Add text, personal photos or use our clip art options. Flexible 30 mil thick magnetic material has a smooth finish for high quality results. Also available as an adhesive window decal Take a step back to review all of our sport magnet shapes we have to offer. You can also go even further to see all of our magnet shape themes.