Flash dancing blob!
Perhaps my greatest accomplishment in the field of pointless animated musical proof-of-concept demos since my 6502 threading library MUSTARD.NES.
The concept this is proving is not very special in this case, just that command-line swf tools (called "SWFTOOLS") actually work as advertised. In some cases, even better than advertised since the docs imply that png and mp3 support has not yet been implemented, but the implementation says otherwise.