Looks like Grievous shared a pair of extra legs with Maul!
About this creation
Well in another dose of Darth, here's Maul after his "accident" on naboo. As you can see His legs were the victims. I believe I borrowed the general design of the legs from another member of moc pages. I intend to give full credit to the guy who created the version I altered to make this terror. I can't remember who wade it first but if you see this my hat's off ta ya!