Eyedropper converted my first platinum preppy today! :) It was fairly straightforward, though I should have gotten a slightly smaller o-ring. : r/fountainpens
Is the Platinum Preppy the best budget (<£10) eyedropper? Yes, yes it is (probably). : r/fountainpens
Platinum Preppy Wa Fountain Pen Limited Edition – Pen Realm
Platinum Preppy Fountain Pen – Extra Fine – Black – The Pen Outpost
Platinum Preppy Fountain Pen Fine Nib 0.3mm - Etsy Israel
Preppy Eyedropper O-Ring Kit – The Pen Outpost
Eyedropped Preppy. O-Ring is not enough ink still leaks(Herbin Lie de The) : r/fountainpens
Platinum Preppy O-Rings (4-Pack) - The Goulet Pen Company