Thumb Score: +33

YoYo Essentials via Amazon [amazon.com] has 40-pk 20″ Heavy Duty Extra Large Black Zip Ties (250-lbs Tensile Strength) 2 for $19.98 – (multibuy discount) = $9.99.
Shipping is free with Prime or on $35+ orders.

Savings
Get 2 for the price of 1 (check and activate [amazon.com])