I know that feeling man xD I hate dust too, it's the Action Figures killer number one IMO. Your solution might be a bit complicated (I mean just in case you want change a pose and the charachter is at the buttom xDDD) but the final look is very cool and make each figure to pop out really well!
Now I bring you another simple repaint. Since DCC just teased us with this... I've decided to make my own one -.- It still have to finish it (I have to repaint joints, repaint better the jacket and glue the parts who need it) but I think it looks pretty cool! Shame on DCC for not making this... -.- Luckly I've found this Joker from china, loose, for only 9$!!!
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