Homie Gear via eBay offers the Vans Unisex Authentic Canvas Shoes in nine colors for $29.99 with free shipping. That's the lowest total price we could find by $8, although we saw them for $3 less in January. They're available in sizes from 3.5 to 13, although not in all size/color combinations.
Note that these shoes will ship without the box. If you want a box, you'll need to upgrade to standard shipping for $5.95.