Was at Wally World last night looking for a broach pin and came across head and eye pins.
Eye is just under 2 mm inside diameter and just about 3.5 mm outside diameter. Head pins are 2 mm in diameter. Package of 100, looks to be about even split of head and eye, is $2.00 They had in silver, brass and gunmetal finishes. Bendable without much effort, 2 inch length. In the bead and sewing section. Package of 200 was $4.00 again probably about an even split on head/eye.
Looks like they could be used for rivet heads, eye bolts, tow cable eyes, etc.