As one of its daily deals, SharkStores offers the Uzi Aircraft Aluminum Tactical Defense Pen & DNA Extractor in Gunmetal (pictured) or Black, model no. UZI-TACPEN1, for $14. Coupon code "DEAL2NEWS" cuts it to $12. With free shipping, that's tied with our mention from a month ago and the lowest total price we could find by $3. This pen features a sharp ridged crown to extract DNA for use in self-defense and an over-sized pocket clip. It includes a standard black ink cartridge. Deal ends today.