Here are language-neutral characters that are supported by neither of your B/W fonts + Windows 7 standard fonts.
23EB Black up-pointing double triangle
23EC Black down-pointing double triangle
23F0 Alarm clock
2705 White heavy check mark
270A Raised fist
270B Raised hand
2728 Sparkles
274C Cross mark
274E Negative squared cross mark
2753 Black question mark ornament
2754 White question mark ornament
2755 White exclamation mark ornament
2757 Heavy exclamation mark symbol
27B0 Curly loop
27BF Double curly loop
Here are language-neutral characters that are supported by neither of your B/W fonts + Windows 7 standard fonts.
23EB Black up-pointing double triangle 23EC Black down-pointing double triangle 23F0 Alarm clock 2705 White heavy check mark 270A Raised fist 270B Raised hand 2728 Sparkles 274C Cross mark 274E Negative squared cross mark 2753 Black question mark ornament 2754 White question mark ornament 2755 White exclamation mark ornament 2757 Heavy exclamation mark symbol 27B0 Curly loop 27BF Double curly loop