Sure! I know of 3 DIY sellers who are active here:
- Rikubuds: rikubuds.com
- TGXEAR: TGXEar.com
- Valphonics: might need to message here @Valphonics or on Instagram if you have it
I’m tagging @AceBee as he’s tried more DIY buds than me!
There are also established companies making some decent to excellent sets:
- Fiio FF3, FF5
- Yinman
There’s also @Rikudou_Goku’s database that you can use to find cheap but decent MX500 shell: https://docs.google.com/spreadsheets/d/1YNuslYM4CrhMPrOLofzTm4ei7HEfP8AI1zxswrMw2ho/htmlview
And don’t forget this thread: Earbuds Discussion Thread