The S2 version of the dryer goes up to 70C, so I figured this is enough to dry reusable silica gel or even annealing PLA prints.
This tray goes on top of the rollers so that things don't touch the heater directly. Fits both of Sunlu's dryers (maybe some others too, I don't have one to try).
Print out of something heat resistant, whatever you fancy. PETG will do for S1, ABS or higher for S2.
The author hasn't provided the model origin yet.