A buddy of mine just launched a Kickstarter. Great guy and he does awesome stuff. Right now he is offering a display case for 1:6 scale collectibles - Iron Man is featured - but can be used for other figures as well. He designed them himself and makes each one using 3D printing. Check it out...
https://www.kickstarter.com/projects/powerlabs/3d-printed-display-stand-for-1-6-scale-figures