So, you think putting a TARDIS on everything is excessive, uncreative, and a little gross?
How do you feel about money, though? Because, believe it or not, there are still plenty of products that have not yet been TARDISed, and, judging from the current output, there are plenty of people who will buy anything if it looks like a police box (whatever that even is). I went ahead and doodled a few of my ideas in knockoff MS Paint, but I'm really just a dreamer. Someone who actually knows how to design a product and bring it to market should probably take it from here.
It seems like Doctor Who fans all need to keep up with the lies they've been telling one another about how they've ~*~ToTaLlY~*~ been watching it since they were kids, and—I don't care what anyone says—the best lies are rich in detail. For this reason, someone should turn small household items into unexpected TARDIS merch. That way, fans could hang up their TARDIS merch with even more TARDIS merch and no one would ever question their devotion.
That also means they'll need to get some sort of sticker or slipcover for their iPhone wall nubbin. Surprisingly, NO ONE HAS THOUGHT OF THIS. Seriously.
Someone should design a line of hospital gowns. Get it? Because doctor.