*He probably already has those... hug*
*Oh, for the volcano lair... Definitely something to launch rockets out of the crater...
And a way to reroute the boiling lava so you can use it for something else, like turrets which spray lava over intruders or a trapdoor in front of your desk which opens when you push a button and drops the victim into a pool of lava... that's always entertaining...
And robot spiders which are resistant to the heat of the lava...
Just imagine how surprised your enemies will be whe they suddenly jump out of the lava... hug*