I would imagine that the title doesn't make this really stand out :S, but I've been working on making a 2x1 (or 1x2 - I don't know my dimensions ._.) piston door that makes the pistons disappear after it's opened. I really don't know if this has been done before as I haven't been up to date on the recent builds of some minecrafters. x) I'll add a world save after I feel like it or when I get some responses for one. My brother thinks that the door is complex, but I'm sure anyone that is willing to understand what's going on can understand it in no time. :)

Anyways, enjoy, diamond, subscribe, or whatever. ;D

Additional Notes

I have no idea if this has been done before, so if it has, I can assure you it is not copied. xD