(There's no video for FunPaint! 0.75 yet. Please contribute to MR and add a video now!)
FunPaint! is a nice B&W graphics toy that immediately hands you over the entire screen to click and draw abstract stuff. It offers adjustable size painting tools such as rectangle, circle, gradients, "palette" (B&W so it's not really a palette, but more like a dots shader) animation, etc...
See also: Rainbox
FunPaint-.sit (10.05 KiB / 10.29 KB)
FunPaint v0.75 / compressed w/ Stuffit
This runs on any 68K and PPC Macintosh from System 1 to Mac OS 9.
Emulating this? It should run fine under: Mini vMac