This is an experimental design for a yo-yo disk that can be assembled with a commercially available yo-yo kit. You will need two of these disks along with the kit to make your yo-yo. As of yet I have not tried making a yo-yo of my very own so good luck!
The disks are solid and modelled after an old Duncan professional style yo-yo from the 1970's.
https://artsandculture.google.com/asset/yo-yo-duncan-diamond-professional-yo-yo/awGenngPuPQi_w
The commercial yo-yo parts kit may obtained from this
source:
https://www.woodturnerscatalog.com/p/63/4090/Artisan-Classic-Yo-Yo-Kit