I recently made a solo dice game called Dice of Arkham. It's not a dice version of Arkham Horror, but thematically it's more or less the same.
But the reason for this post is just to brag about the very cool custom dice I had warbases.co.uk make for me. I found the company through a blogpost by Matt Thrower and they are every bit as cool as he described them. I gave them some pictures I googled made and then they transformed them into something that looks cool on dice. And for 11£ including shipping to Denmark I think it's a bargain.