Poor Space Mountain will exit into all Tron merch lol
"Hmm... we can't sell Magic Bands, phone cases, plush, generic park t-shirts, and dozens of other things not really related to Space Mountain at the exit, what else could we try to sell there instead?"
Honestly. Make some cool Space Mountain t-shirts. I bet they'd all have some retro vibe since that's the only thing Disney seems to be able to produce these days, just avoid the horrible 70's color schemes. But the chances of that happening are slim to none, and slim just left.