The paleotronic folks have been on fire lately. Their Apple II emulator, microM8 is fast becoming one of the most advanced, cross-platform emulators.
5.25 floppies:
https://mega.nz/#!yDITXIZC!8fREZdAruk2yYLv859jKABGSWeG4UkRoC...
https://www.flickr.com/photos/150180606@N08/sets/72157672562...
https://www.flickr.com/photos/150180606@N08/sets/72157672589...
I've also got a larger selection of DD floppies, HD floppies, JAZ disks, SCSI disks, IDE disks, MacFormat and other CDs. Please tell me if you want the links!
Signup: http://apple2.gs:3000/
Also, just show off pictures — people will be interested! :-)
(Cue incoming comments (a) asking me why it's relevant what language it's written in, and (b) talking about how much better it would be if it were written in Rust. :-) )