TheGreatWolfgang said:
♥ ... ♦, ♣, and ♠.

I feel like the we should probably get rid of these, they're so tiny and at a glance it's kinda hard to tell them each apart since they're all just kinda black blobs (or light blue blobs or white blobs depending on where you see them), but especially spade/club.

Some other post-ASCII Unicode symbols like ☭ have a similar problem with the suit symbols and are just really difficult to tell what they're supposed to be because they're not really meant to be viewed at sub 12pt font sizes (e6 uses somewhere between 9pt and 10pt).

Some of the ASCII symbols like ♂ or ♀ actually look fairly distinct and you can tell which is which somewhat easily even at smaller font sizes because of the way they're rendered.