Crocs via eBay offers the Crocs Unisex Modi Sport Realtree Max-4 Flip Flops in Chocolate/Khaki for $22.99 with free shipping. That's the best price we could find by $9. They're available in select men's sizes from 4 to 15 and women's sizes from 6 to 10 12.
REI Garage offers the Merrell Kids' Novica Moc Shoes in several colors (Brown pictured) for $29.73. Opt for in-store pickup to avoid the $5.99 shipping fee. That's $15 off and the lowest price we could find. They're available in standard and wide sizes from 11.5 to 7, although not in all size/color combinations.