A dwarf as ringbearer?

[Mhoram]

The dwarven rings were geared toward the greatest dwarven weakness, greed of gain.

You sure about that? I thought all the rings were made by elves for elves. I know the poem refers to Seven for the Dwarves but isn't that just the way Sauron chose to distribute them? The Nine he personally gave to Men. The Three the Elves kept from him. Doesn't it seem strange that the Elves would make seven rings of power to give away to the Dwarves, whom they have no love for?