I'm going through a phase of failing at taking pictures of my nails. I'll often do it just as I've finished, but before I've cleaned up but then forget to do it before they fall apart. You'll just have to bear with it :)
Super Mario design was something that we first came up with as an interior thing. Gema, a friend of ours and I ended up browsing the internet for how to furnish a flat in all gaming/geek related stuff and there were some brilliant Super Mario pieces. Since I don't really have the money to carry the project through, it became a nail art inspiration instead.
It's been on my to-do-list since we started planning our Avenger designs and I've occasionally browsed through what others have done. Some projects are well impressive, partly because they've got such long nails and can fit a lot more. I loved all the mushrooms and couldn't resist including Mario & Luigi (the moustaches were surprisingly hard!). I didn't feel I had the accuracy to include the monster flowers or make a tube look pretty, so ended up with a turtle shell and the chance-box's question mark.
Unfortunately, the nude I was using didn't last for very long. It was a shame, since I was rather pleased with the final result. Apart from the moustaches (which I now realised would be much easier with a nail art pen) there weren't too many details to fiddle with, so do give it a try!