Description: A shield-shaped emblem featuring a detailed depiction of a brick bridge with arches spanning a river. Behind the bridge, a row of colorful buildings, including a church with a spire, are visible against a light blue sky. The text "BALLINA IRELAND" is prominently displayed at the top.
Description: A retro-style silhouette of a person with a backpack and trekking poles ascending a rocky slope against a vibrant sunset. Vertical stripes of teal and green are visible in the background. The phrases "HIKE MORE" and "Worry LESS" are prominently displayed in distressed lettering at the top and bottom.
Description: A black background with white mathematical equations arranged in a circular pattern resembling a clock face. White clock hands are positioned at the center. Equations include "x² + y² = z²", "lim (1/x)", "∫ e^x dx", "f(x) = mx + c", "d/dx sin(x)", "e^(iπ) + 1 = 0", "log10(100)", "2³ - 1", "√(16+2)", "(3+2)²", "√144", "Σ n/n!", and "π ≈ 3.14159".
Description: A black background with white text. The top line displays a mathematical equation: the square root of -4 equals 2i. Below the equation, in all capital letters, are the phrases "IT'S ALL FUN AND GAMES" and "UNTIL SOMEONE LOSES AN I."
Square Root of Negative Four Equals Two i It's All Fun and Games Until Someone Loses an I T-Shirt
$16 $24
Description: A mathematical equation displayed in white text on a black background. It shows a summation symbol with limits i=0 at the bottom and 32 at the top. Following the summation is the number 210,000, a multiplication dot, and a fraction with 50 in the numerator and 2 to the power of i in the denominator.
Summation of 210,000 times 50 over 2 to the power of i from i=0 to 32 T-Shirt
$16 $24
Description: A simple black background with a solid red heart icon at the top. Below the heart, a mathematical integral expression is displayed in white text: the integral from -0 to infinity of 1 divided by x squared plus 1, followed by dx. The expression uses standard mathematical notation.
Description: A retro style circular emblem featuring a black silhouette of the Delicate Arch against a sunset gradient of red, orange, and yellow. Below the arch are silhouetted mountains. Text at the bottom reads 'ARCHES NATIONAL PARK - UTAH EST. 1929'. The outer circle has geometric accents.