eBay with Hanes has the Champion Women’s Logo Boyfriend Powerblend Sweatshirt (multiple colors) for $15. Add two to cart to reach $30 - 25% off in cart (25% off $25+) = $22 with free shipping for two ($11 each).

You may be able to get them for $22 - $3 off w/ code PERFECT3 [Exp 3/26; supposed to be for new customers only, YMMV] = $19 shipped.