Using a old belt I had (see link below for one like it) I replaced the stock hard plastic handle and made covers for the top and bottom opening.  Recommend printing in a filament that is UV resistant and Heat resistant.  Best way for my printer was vertical despite that meaning the part would be weaker strength wise.  ASA filament used.

If you use your own slicer mirror the part to get both sides. For the upper cover.

https://www.amazon.com/GRIP6-36in-Black-Belt-Strap/dp/B07NGVBHDV/ref=sr_1_7?crid=9N6U9TWMD02Q&keywords=grip6%2Bbelt&qid=1670310370&sprefix=grip6%2Bbelt%2Caps%2C163&sr=8-7&th=1