Eyedropper converted my first platinum preppy today! :) It was fairly straightforward, though I should have gotten a slightly smaller o-ring. : r/fountainpens
Platinum Preppy Fountain Pen Converter - InexPens
Is the Platinum Preppy the best budget (<£10) eyedropper? Yes, yes it is (probably). : r/fountainpens
Platinum Preppy Fountain Pen – Truphae
Lot of 7 Platinum Fountain Pen Ink Converter Fits for Platinum Preppy Plaisir | eBay
Genuine Converter For Platinum Preppy Fountain Pens - Pen Converter
Platinum Preppy Fountain Pens
Platinum Preppy Fountain Pen - 0.3mm Tip | M.Lovewell
Platinum Preppy: A Comprehensive Guide | JetPens
Platinum Cartridge Converter - Gold Trim - The Goulet Pen Company
Platinum Preppy Fountain Pen | Unsharpen
Platinum Preppy Fountain Pen Crystal - 0.3mm Tip | M.Lovewell
Kokuyo x Platinum PERPANEP Preppy Fountain Pen - White — Stationery Pal