I recently purchased a 6 deck auto card shuffler from Amazon for around $25 USD.
This is a new design of the card tray with the following design improvements:
The writing is quite tiny and I strongly recommend you use a 0.2mm nozzel to print. I have provided a Print Profile for the 0.2mm nozzle. I have slowed printing speeds down for the lettering objects to allow for a better quality print.
If you would just like the improvements and you are not interested in the branding; please consider the “Not Branded” version and using a larger nozzle size.