REI offers the Bogs Men's Cruz Chelsea Rain Boots in Mocha or Black Olive for $66.83 with free shipping. That's $68 off list and the lowest total price we could find. They're available in select sizes from 8 to 14, although not in all size/color combinations.
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.