This is a from-scratch design of similar transport/drip trays that can be bought online, for my Husqvarna chainsaw.  The part is larger than almost all printers so will need to be cut and printed in two parts.  I used the round connectors in PrusaSlicer with some super glue to hold the parts together, along with a strip of duct tap on the back side to seal the slight remaining gap.  I made it out of ABS because I have lots of it on hand, but PETG or even TPU would probably be a better choice.  The strap can be any elastic you have on hand - I happened to have a few large rubber bands around.