Here's what I use on mine:

Many (if not all of the NES boxes) have a ™ instead of the ®, but that's a difference I'm ok with.
Also, great work on that Space Shuttle cover!
Thanks..

That stupid offer thing took forever.. But I made it out of default Photoshop shapes and pulled the yellow shuttle out of the original, cleaned it up a bit and added a stroke to it.. came out pretty good..

I was saddened though, I did all that layer work, and flattened it to copy over to the main document. I forgot I flattened it and saved the changes.

..