EDIViA K811B Active Pen for Lenovo C330 Convertible 2-in-1 Chromebook (11.6") Stylus, EDIVIA Digital Pencil with 1.5mm Ultra Fine Tip
Best Buy: Samsung Chromebook Plus 2-in-1 12.3" Touch Screen Chromebook 4GB memory 32GB eMMC Flash Memory Platinum Silver XE513C24-K01US
ASUS Chromebook CM3000, a cheap 2 in 1 under Chrome OS
Asus 11 C214MA Chromebook Stylus Pen - 90NX0290-R90010. Tested, fully functional, and ready to replace your defective part.
Stylus Pens for Asus Chromebook Flip 2 in 1 Touchscreen Laptop Digital Pencil with 15mm Ultra Fine Tip Pencil for Asus Chromebook Flip 2 in 1 Laptop Stylus White - Newegg.com