[WindowsCentral.com]

Best answer: Yes! As long as your gaming chair has armrests, you can add a cupholder to it.

[LIST][*]Cupholder accessory: Dirza Clip On Cupholder ($9 at Amazon)[/LIST]
Is adding a cupholder worth it?

There are two main reasons why we think adding a cup holder to your gaming chair is worth doing. The first is that it's incredibly affordable and easy to do, and the other is that it's a great way to make sure you don't spill your drink all over-sensitive electronics.

Full story from the WindowsCentral blog...