Slightly odd request. I would love a Hatter/Alice (preferably male) line or Hatter/Hare, but thats not the odd part-- I'd kind of like to do them out of Wonderland just personified personalities into regular(ish) people. (I'd do Hatter)
More normally anyone into doing a Holmes/Watson lines would also be great (I'd do either but would proably be better at Holmes)