Jake:
For eyebolts, it is cheaper and easier to mass produce your own in whatever scale you need.
My friend Bob Craig taught me this method several years ago. He said he found it on the web, but does not recall where. My apologies if you have already heard this method described.
1. Get a piece of scrap dowel, about 5-6" at most.
2. Take a razor saw and cut a slot into the end grain and make the depth of cut about 1/2" or so.
3. Chuck a drill bit into your pin vise, the diameter of the bit being a hair larger than the diameter of the eye of your eyebolt. Drill through the dowel, intersecting the slot at right angles, near the depth of the cut, but with a little room to spare. Drill all the way through.
4. Next, take some brass wire or blackened steel wire and cut off a piece to fit into that hole, making sure it goes all the way through. It is around this wire that you will form the eyes for your eyebolts. This completes the jig.
5. Take the diameter of wire you will use for the actual eyebolt and feed a length of it into the slot at the end of the dowel and pass it around that wire that goes through the hole, so that you can bring both ends of the eyebolt wire out beyond the end of the dowel.
6. Twist the eyebolt wire. I use a pair of needle nosed pliers to hold the two ends of the wire and twist the dowel. Twist until the eyebolt wire breaks. It will break very close to the end of the dowel.
Finally, pull that wire out of the hole and a perfectly formed eyebolt will fall out of the slot in the end of the dowel. The end of the wire will need some trimming with some end nippers to get the right length, but other than that, the eyebolt is ready to mount.
I have several eyebolt jigs in my tool drawer so that I can make several different sizes of eyebolts in several scales. If I need a new one, I can grab a piece of dowel from the scrap pile and make me a new one in about 5 minutes. In use, I can produce several dozen eyebolts in about 20 minutes.
Russ