If I ever buy a Roadster, the first accessory that I will get is "the CAN" J1772 adapter, sold by hsharp on this forum. The second will be the already mentioned mesh top from vfx.
GSP
PS. hsharp will soon have a Model S charging plug to Roadster adapter. With lots of HPWC charging stations at Tesla stores and some hotels it may be worth buying as well.
Thank you GSP! It was the first accessory for my Roadster, too. Well, OK, I made a charger first, but that was a week or so before I got my Roadster. Had to make the connector from scratch.