So I am looking to make some Platinum Preppy eyedroppers and am in need of the correct o-rings. I'm sure some FPNer has some and probably had to buy them in a gross or something. So, I am willing to send you a dollop of silicone grease for some o-rings. The whole thing should be doable via a standard first class envelope.

Easy low cost trade. I know someone else is doing these conversions and is just swimming in o-rings...

In the event that somebody does actually have a ton of o-rings out there, I'd be interested in trading or buying a few myself, once Chemyst is satisfied (of course). I could offer ink, postage, or money.

If it seems nobody has the correct o-rings but somebody knows what the correct ones are for sure, I'm also not entirely opposed to becoming the Preppy o-ring guy if this is something that can be done for $20 or less.

[color="#0000FF"][/color]I have done some modifications and gotten my O-Rings from pendemonium.com. They're $1 each. Pretty good deal.

Thanks.
Bluenotegrl

Yup, Sam just sent me a message saying the same. If you desire to order them from Pendemonium use code LG-ORING and they are $1/ea. At that price, you're just as well off really buying the completed mod for $6.

If anyone has a set of calipers and can determine the approximate inside diameter (or just wants to do trial and error work) o-rings go for $0.005-0.03. The whole coversion of a $3 Preppy should be essentially free, sans postage, for an interested FPN once we determine the right o-ring.

Honestly, I think I'm willing to pay $6 each for the couple of pens I was thinking of buying to turn into eyedroppers. I'm glad they're now offering them decked out this way. I hadn't noticed this addition as of the last time I looked at the Pendemonium site.

I'll be happy to do some measurements once my "free" with Noodlers pens arrive. O-rings are cheap in quantity and I'm thinking of other applications, for some so I want to know the sizes in question too.

Right O-Rings seem to be M1x9.5 or M1x10. Will confirm measurements over the weekend when I can empty a pen and take the o-ring off.