Cutie 3.14 Pi Day Magnet 招待状

Flat Holiday Card Celebrate Pi Day in true retro style with this bold, groovy π symbol design inspired by classic 70s typography. Featuring warm sunset tones of orange, mustard, and earthy green with smooth flowing curves, this vintage-inspired artwork blends mathematics with nostalgic aesthetic vibes. Perfect for math lovers, teachers, students, engineers, and anyone who appreciates funky retro design. Whether you're celebrating March 14 (Pi Day) or just want a stylish geek statement piece, this eye-catching design stands out beautifully on apparel, stickers, posters, and more. A fun fusion of math and vintage cool. ✔ Trendy retro 70s aesthetic ✔ Perfect for Pi Day (March 14) ✔ Great gift for math teachers & STEM students ✔ Bold, eye-catching color palette ✔ Works beautifully