I was thinking of what famous toyline would continue in the 21st century:
- Mattel is likely be gone since it's headquarters is in El Segundo, CA within the Los Angeles Country. Los Angeles and the county suffered multiple hits. If surviving factories survived, maybe they could still produce Hotwheels, Matchbox, and Barbie Dolls.
- Hasbro may or may have survived since it's HQ is in Pawtucket, RI. However, since Rhode Island is small and Providence taking a hit, the entire state is drenched in fall out along with strikes in the Boston-Washington corridor. Again, like Mattel, if other factories survived, they could still continue making their products such as Transformers and Battleship.
- LEGO definitely survived since Billund didn't take a hit. I could see it continue production factories within the ANZC, SAC, and Southeast Asia. Just like OTL, it would be insanely expensive and only the elite would probably be its main customer.
Other than that, Star Wars action figures from 1977-1983 would be worth a fortune here.