There is also a TG-16 hard shell case (not the CD-Rom one).
There are two variations of the hard case. I think the main difference being one had more space for games, and lacked space for the Booster. I have the one with space for a connected booster. I have a pic somewhere of the other style.
I got mine from a rental store, I think they were intended for rental TG-16 systems.
*edited to add;
I just looked on ebay, someone there is selling a case in Canada, wants $200 for it
Anyway, that is one variation, and after noticing that shiny sticker on the interior of the case, I figured that was a store's sticker. Reading the description, the seller mentions it was used at a rental store in Canada.
The other variation, the system sits with the rear of the booster near the hinges, the space up front of the case is used for the AC adapter, and the side of the case has spaces for controllers, tap, and 5 or so games.
*also, I need to add.
I forgot, some of those hard cases don't have molded plastic inside, but foam.
.