The submission form has undergone some revision, so please be sure to review the new text before putting together a proposal. There is a limited number of emoji characters considered each year, so be sure to follow the form so that you can provide the best case for any proposed emoji.
The emoji subcommittee has also produced a new page which shows the Emoji Requests submitted so far. You can look at what other people have proposed or suggested. In many cases, people have made suggestions, but have not followed through with complete submission forms, or have submitted forms, but not followed through on requested modifications to the forms.
Over 130,000 characters are available for adoption, to help the Unicode Consortium’s work on digitally disadvantaged languages.