The first time I could not find where to buy a handle, so I made one myself. It was fun but it was not that easy as my woodworking skills and woodworking tools are limited. I will include some pictures about it but I will not describe the process because it is way easier to buy one for 4,95 dollar including shipping!
I must have overlooked it the first time but you can buy handles on My Badminton Store
. The advantage is that you can choose the right size (handle and shaft dimensions) and the plastic cone (front cap) and bottom (end cap) are included so you don't have to recover this from your broken racket (which is not easy).
The front cap just above the handle holds a sticker with the shaft size on it. Mine says it's a Yonex G3 handle size, so go for the G4 handle size. Indeed Yonex uses other sizes than other racket manufacturers but My Badminton Store informs you about this. If you want a bigger or smaller handle, this is the moment, choose your favorite.
Also measure the diameter of the shaft and choose the correct one on the site. Mine was 7,12mm so I went for the 7mm version.
It took almost 2 weeks to arrive (China to Belgium). So you have a lot of time to follow another Instructable in the mean time ;-).