Where to get new joysticks for MSX computers?

Remember to resolder the wires on the front of the PCB, so they won't get in the way when glueing the PCB back. You want a perfect contact area between the PCB and the wood reinforcement. Better yet if you can keep both pieces hold together on a press until the glue dries completely.

Does that mean that Sega Genesis joypads work on our MSX ?
Because I've just tried a true one on my Sony HB-F9 and it did not work ...

I bought Telemach from their ebay shop. It is with Amiga mapping but they also have the traditional MSX Telemach.
http://tienda.factoryarcade.es/es/49-telemach

Yes, you can do it! There are more complicated devices that can be plugged into MSX joystick ports which use communication protocols, but you won't have problems with a basic joystick. When we were kids we did that all the time with Atari CX40 joysticks, modding them to have two buttons (they were easy to find here in Brazil and not expensive).

I received it today, that was quick… It feels nice and looks solid, I played some Salamander on my turboR via a transistor JoyMega adapter and everything worked well. Compared to the 8bitdo controller the feel of the plastic is a little smoother and the shape is more like Sega’s original. The buttons are nice and clicky, and the d-pad has a good pivot to it. Overall it seems a quality controller, I can recommend it.

Definitely much better than the cheap Chinese one I picked up a few years ago, and I would say also a nicer controller than the Panasonic JoyPad. Since these are wired I’m going to try and turn them into JoyMega MSX controllers internally so I don’t have to mess with an adapter. After taking out the 5 small philips screws it looks like the PCB is nice and roomy and there’s also enough room in the back, so the modification should not be very difficult. I have two of them :).