So here's a newish emulator that came up on my own forum:
https://launchpad.net/graybox/
It seems to be a new ROM-less, MacOS-less emulator. Sort of like what Executor and Carbonless Copies were back in the day.
Quote:
"GrayBox enables you to run classic Mac apps on Mac OS X... without "Classic"!
GrayBox is similar to Apple's BlueBox/Classic. Like Classic, GrayBox interleaves its windows as peers to those of native apps. Unlike Classic, GrayBox runs each app in its own protected memory space.
GrayBox runs only early B&W apps. Currently, it has been tested only with MacDraw 1.9.5; see
http://www.dejamac.com/software/macdraw/. "