AltaTac via eBay offers the Magnum Men's Viper Low Slip Resistant Work Shoes in Black for $39.99 with free shipping. That's the lowest total price we could find by $30. They're available in standard and wide widths in sizes 3.5 to 15, although not in all size/width combinations.
These tips will leave your ride smelling swell without breaking the bank. Some are also chemical-free.