How can I type in a "manicule" to send?
A manicule is a sort of punctuation or formatting sign that is not on my keyboard but I suspect is in the character matrix.
I am using Thunderbird running on Windows 7.
Wšykne wótegrona (2)
There might be a more convenient way, but...
These characters have a corresponding Unicode identification, so you can use
Insert > HTML
and then embed that Unicode number into a tag an HTML entity. For example, for the white hand pointing to the right:
☞
which yields
☞
These pages have a list of those codes:
Wót jscher2000 - Support Volunteer
If you want to have a dizzying array of letters and symbols at your disposal, install abcTajpu.