Next, I might make a motorcycle controller and play a motorcycle game.

I made a racing wheel controller by myself using only the stock controller and what I have at home. And of course the accelerator and brake pedal.
All you need is a piece of cardboard, wood glue, rubber bands, and a pair of scissors to make it.
How about making this with your kids during the summer holidays or when you have a lot of time at home in Corona?
I made this one by myself and my 5 year old enjoyed the racing game with the Racing Wheel Controller. (It wasn't so much a race as it was a fun way to move the car.)

It would have been better if I had a glue gun or something like that instead of a bond, but the bond worked well enough.
I recommend using a quick-drying bond.
I used this bond.
Cemedine Woodworking Adhesives Quick Dry 50ml CA-236
https://amzn.to/3dCsWrv

You can change the rudder angle by changing the longitude of the shaft connected to the L-stick by a thread. The rudder angle is too small as it is now, so it will be easier to operate if the shaft is narrower.

In the racing wheel controller industry, G29 and Fanatec are very popular, but the price is too high for me to afford them.
I'm a light gamer who just wants to enjoy the atmosphere, so this is fine with me.