Playing with character symbols in HTML4

[tagryn]

via the list at http://www.bigbaer.com/reference/character_entity_reference.htm
all done using simple HTML code:
♪♫♪
☻☺
℞ ™ © €
∼∫2≅2∴2=2 to ∞
∗∑¼
Chi-square: χ²
õ &

There's a number of other ones on that list that my browser (Firefox 2) doesn't seem to like, those come up as ?s.