Meritline offers this 2.5" Folding Compact Survival Knife in Black for $3.99 with free shipping. That's the lowest total price we could find for such a knife by $6. It features a 2.5" blade, serrated blade, and textured handle.
Kissbuyonline via eBay offers this Aluminum Alloy Bike Water Bottle Holder for $1.70 with free shipping. That's tied with our mention from last week and the lowest total price we could find by $3, outside of the prices below.
A couple of close prices: Amazon offers a similar holder for $2.45 with free shipping, and Meritline has one for $3.09, also with free shipping.
Note: Expect these items to take 2 to 3 weeks to arrive.