99% yes. I used to sell on NOTHS and how could they have an agreement? They're just a marketplace for other sellers like eBay, Gumtree or Amazon Marketplace.
Yes, I'd imagine the cushions are because they're reproduced.
And yes, just to confirm my site is scrabblecufflinks.co.uk. I believe I am at fault for having "scrabble" in the domain name (after consulting the HTML section) but want to know if I can essentially carry on with the same site under a different generic domain name.
IA(still)NAL
Option 1. Talk to a lawyer and prepare for a fight. Remember, even if you are legally correct, hasbro can still drag you through the courts and force you to prove it. This will be very expensive.
Option 2. Talk to Hasbro, explain what you want to do and see what they say. Assuming thier objection is only to the use of the name, and not the kit itself, then they should accept that. If they are saying you may not even resell the tiles, you may want to try option 1 afterwards.