{"product_id":"certified-brain-fart-self-inking-rubber-stamp","title":"Certified Brain Fart Self-Inking Rubber Stamp","description":"\u003cp\u003eFinally, grading math work just got a whole lot more fun. This cheeky self-inking math stamp delivers a playful nudge with the bold message “The Math Is Mathing, But You Aren’t,” turning corrections into a lighthearted moment that helps students stay motivated, keep trying, and learn from mistakes without the sting of repetitive red pen comments.\u003c\/p\u003e\u003cp\u003eDesigned for busy classrooms and supportive home learning, this easy press-and-print tool creates clean, consistent impressions in seconds. Choose from 11 vibrant ink colors and stylish case shades like Light Pink, Purple, Midnight Black, and Fuchsia to match your vibe. Available in Small, Medium, or Large, each laser-engraved imprint stays crisp and professional, with up to 10,000 uses.\u003c\/p\u003e\u003cp\u003eMade for elementary school teachers and parents of kids who need a little extra encouragement with math, this self-inking teacher stamp saves time, adds personality, and helps build a classroom tone where effort matters. Count on ESS for high-quality rubber stamps delivered quickly and reliably, so you can start making feedback faster, easier, and more memorable today.\u003c\/p\u003e\u003ch2\u003eCheeky Math Struggles Self-Inking Stamp The Math Is Mathing, But You Aren’t Highlights and Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTime-Saving: Give quick, consistent feedback on math work without rewriting the same note, helping teachers and parents move through grading faster while still acknowledging student effort.\u003c\/li\u003e\n\u003cli\u003eEncouraging: The playful “The Math Is Mathing, But You Aren’t” message adds humor to corrections, easing frustration and helping children feel supported instead of discouraged.\u003c\/li\u003e\n\u003cli\u003eEasy-Use: Self-inking design creates clean impressions with a simple press, making classroom marking smooth, comfortable, and reliable for busy school days.\u003c\/li\u003e\n\u003cli\u003eVersatile: Choose from 3 sizes—Small, Medium, or Large—to match different paper spaces, grading styles, and visibility needs for homework, worksheets, or tests.\u003c\/li\u003e\n\u003cli\u003eDurable: Built for repeated use with crisp, sharp imprints, this cheeky teacher stamp delivers long-lasting value and a consistent look that keeps feedback clear and professional.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Trodat","offers":[{"title":"Default Title","offer_id":49558920134896,"sku":"20160-SI","price":15.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/7651\/7027\/files\/20160_black-main-self-inking-ess.jpg?v=1776110710","url":"https:\/\/engineersealstamps.com\/products\/certified-brain-fart-self-inking-rubber-stamp","provider":"Engineer Seal Stamps","version":"1.0","type":"link"}